Tips For Tropical Hibiscus Fertilizing


By: Heather Rhoades

Tropical hibiscus fertilizing is important to keeping them healthy and blooming beautifully, but tropical hibiscus plant owners may wonder what kind of hibiscus fertilizer they should be using and when they should be fertilizing hibiscus. Let’s look at what’s necessary to be fertilizing hibiscus trees properly.

What Hibiscus Fertilizer to Use

The best hibiscus tree fertilizers can be either slow release or water soluble. With either, you will want to fertilize your hibiscus with a balanced fertilizer. This will be a fertilizer that has all the same numbers. So, for example, a 20-20-20 or 10-10-10 fertilizer would be balanced fertilizer.

If you will be using a water soluble fertilizer, use it at half strength to avoid over fertilizing the hibiscus tree. Over fertilizing hibiscus plants result in burning the roots or providing too much fertilizer, which will cause in fewer or no blooms or even yellow, dropping leaves.

When to Fertilize Hibiscus

Hibiscus do best when given hibiscus fertilizer frequently but lightly. Doing this helps to make sure that the hibiscus tree will grow well and bloom frequently without over fertilizing.

If you are using a slow release fertilizer, you will want to fertilize 4 times a year. These times are:

  • Early spring
  • After the hibiscus tree finishes its first round of blooming
  • Mid summer
  • Early winter

If you are using water soluble fertilizer, you can fertilizer with a weak solution once every 2 weeks in spring and summer and once every four weeks in fall and winter.

Tips for Fertilizing Hibiscus

Hibiscus fertilizing is pretty basic, but there are a few tips that can help make it easier.

Whether your hibiscus grows in the ground or in a pot, make sure that you put fertilizer out to the edges of the hibiscus tree’s canopy. Many people make the mistake of fertilizing just at the base of the trunk and the food does not have a chance to reach the full root system, which extends to the edge of the canopy.

If you find that you have over fertilized your hibiscus and it is blooming less, or not at all, add phosphorus to the soil to help bring the hibiscus blooms back.

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Outdoor Hibiscus Care: Tips On Growing Hibiscus In Gardens

Hibiscus start being damaged when temperatures drop to 29 F. When you know how to care for hibiscus properly, their beautiful blooms will reward you for years to come.

  • Join our friendly community that shares tips and ideas for gardens, along with seeds and plants.
  • Expect to pay from $9 for 140mm (6″) pots, and $16 for 200mm (8″) pots.
  • Jun 13, 2019 We add in a few household ingredients to help prevent fungal infections and to acidify the water to the slightly acid level that hibiscus like.
  • There are a few ways to fertilize Hibiscus .
  • Garden insect pest of the hybrid hibiscus .

Everything you need to know to care for your Hibiscus

If your plant doesn’t seem to be responding to the fertiliser, check the pH of the soil which should be between 6.2 and 6.5. Fertilizing Container Grown Plants Hibiscus which are grown in containers may be fertilized in much the same manner as plants in the ground. Tropical hibiscus is available in single or double blooms in colors that include salmon, peach, orange or yellow. The temperate flowers grow in a variety of colors due to breeding techniques, but they originally were only red, white and pink. I got Imperial Dragon, Cloud, Night Runner and Chartueuse Rose. When you’re in a rush or just want quick facts, use the helpful table below.

Hibiscus care, growing and watering advice

Plant Care Tropical hibiscus looks and flowers best if allowed to grow into its natural shape. The simplest approach is to use the same fertilizer as you would use for garden plants. Be careful to read the labels on the fertilizer and follow the directions exactly.Don’t fertilize new plants until at least a month after purchase. Jul 9, 2019 Growing and caring for a hibiscus requires a few key types of tools that you can commonly find down at any garden supply store.

Prune, fertilize, provide enough sun: Care strategies for

Growing hibiscus is an easy way to add a tropical flair to your garden. They need fertile, well-draining soil that stays moist, but not soggy.

  • Growing hardy hibiscus from seeds requires obtaining a hibiscus plant.
  • Nov 27, 2019 Hibiscus fertilizer ratio: Medium (N) – Low (P) – High (K).
  • Hibiscus plants growing in arid conditions should be watered twice a day.
  • Feb 13, 2019 C an hibiscus grow indoors of any variety in your home?I say a resounding yes.With the right environment provided, you can grow hibiscus in your home.

Hibiscus Plant Care Tips: growing, planting, cutting

These large-scale herbaceous plants are quick to grow and fill a space, and they add a great tropical feel to any garden setting. Anyway, in this article, we will be discussing the care and growth of the red hot hibiscus so you can have success when growing them in your home garden and hopefully, at the end of this post, you will feel about them like I do, with that said here we grow. Rule Number One: Less is more The number-one rule for fertilizing plants bears repeating: When it comes to fertilizing your plants, less is more. Indoors, fertilize less often, using ½-strength formulation, every month or so in spring and summer, less frequently in winter. Garden-grown tropical hibiscus is more difficult to bring indoors.

Growing Hardy Hibiscus in Your Garden – Garden Chick

How to grow hibiscus – planting and care guide What better way to truly dramatise a tropical garden than with big, bold and magnificently coloured hibiscus flowers? Hibiscus hails from Africa, Australia, China and the Pacific and has become the horticultural highlight of warm-climate gardens all over the world.

  • However, a hibiscus will often be able to grow back from its roots.
  • Whether you decide to eat your roselle or simply grow it in the garden, it is worth its space for its beauty, ease of care, and the variety that it adds to the landscape.
  • Growing in zone 4 (think Minnesota, Wisconsin and the like) to zone 9 (tropical climates like Florida), rose mallow bears some of the largest flowers of any perennials.
  • Feb 4, 2019 Hibiscus sabdariffa is a hibiscus subspecies best known for its edibility, and it’s the hibiscus variety traditionally used to make hibiscus tea.
  • Aug 19, 2019 Hibiscus rosa-sinensis is a tropical plant, and can’t tolerate freezing temperatures.

Growing Your Own Hibiscus Sabdariffa Plant Dengarden

This guide is about hibiscus not growing.

  • Hibiscus require full sun to produce good flowering wood, so the plant could be growing in a shady position, otherwise the plant has been infested with tip‑borer.
  • Tropical hibiscus needs moist but well-drained soil.
  • What’s a South Florida yard without a hibiscus ? With a veritable rainbow of flower colors to choose from, this shrub is one of our most popular landscape plants – with some of the showiest blossoms on earth.
  • Hardy hibiscus like the heat and full sun, so consider planting them near a south-facing wall or building.
  • Florida soils are always deficient of potassium, so a high-K fertilizer would stimulate flowering here.

Growing Hibiscus Faithful Homesteader Blog GRIT Magazine

Growing hibiscus in containers rather than in garden has many advantages. You may have heard them called “dinner plate Hibiscus “, a name coined for its huge 7-9 inch wide, circular blooms. Roselle hibiscus , red sorrel, Jamaican sorrel, and Florida cranberry are a few of the many names for ” Hibiscus sabdariffa”, which is […] The final concern that you will need to consider if your flowers continue to drop is the amount of fertilizer that you are using on the plant.

How To Care For Hibiscus Plants runtedrun

When it comes to fertilizing , more is not necessarily better. A fast-growing shrub, hibiscus may not flower profusely if crowded. It is important to provide your hibiscus with all the water it needs. The secret to fertilizing your houseplants lies in moderation. A Hibiscus plant needs good fertilizing in order to grow and bloom well, which is why, in the summer, you should use a fertilizer high in Potassium (you can use a diluted liquid fertilizer once a week, a slow release one once a month, or add a high Potassium compost to the soil). Perennial hibiscus , or rose mallow ( Hibiscus moscheutos), is native to the moist soils of the eastern United States.

Growing Hibiscus Basic Tips www.coolgarden.me

Jun 13, 2019 Hibiscus adds a tropical vibe to any landscape, whether planted in patio pots or in a relaxing warm-climate garden. Jun 1, 2019 That kind of traumatic transplant, coupled with the less than ideal growing conditions indoors would likely result in the death of the plant. Get free 2-day shipping on qualified Hibiscus , Plants & Garden Flowers products or buy Outdoors department products today with Buy Online Pick Up in Store. In Northern climates, however, your hibiscus will probably be happier in full sun.

Five Easy Tips on Potted Hibiscus

Hibiscus planted in the garden should be given fertilizer formulated for garden plants while container-grown hibiscus should be given fertilizer formulated for houseplants. moscheutos) may have a slightly more conventional color palette than its tropical cousin, but the flowers more than make up for it with their size. Tropical hibiscus is usually seen growing in a container. Perennials that serve as excellent foundation planting, hibiscus are a colorful addition to a garden. Hibiscus fertilization is suggested in frequent small doses. This fertilizer slowly releases nutrients to the plant for a couple of months for you.

Growing hibiscus is a very easy way to include an exotic

Growing hibiscus plants add a touch of the tropics to your home or garden. Some varieties will be easier than others but with proper care and consideration, you can have a beautiful hibiscus in your indoor garden space to enjoy. These fertilizers can be either water-soluble or slow-release fertilizers. Visit The Home Depot to buy HibisGain 10 lb.

Secrets to Growing Vibrant Hibiscus

Dec 17, 2019 Hibiscus plants need a fertilizer with a medium to high amount of nitrogen (N), a low amount of phosphorous or phosphate (P), and a high amount of potash (K) – such as 7-1-2 or 12-4-8.

  • Hibiscus need a neutral to slightly acid soil and there are kits available for testing this.
  • Oct 3, 2019 And whatever you do, don’t use garden soil.
  • Luckily, growing hibiscus on your own garden is quite easy and only requires little effort.
  • Oct 15, 2019 Potted hibiscus thrive on my sunny deck in summer, then lose leaves and get infested with tiny white bugs when indoors for the winter – even in a sunny spot.

How to Grow Hibiscus Outdoors: 13 Steps (with Pictures

This is normal, since the conditions in a pot differ from that outdoors . The hardy hibiscus variety is a perennial that survives more easily through the winter than its tropical counterpart, which easily dies in freezing temperatures. Aug 25, 2019 Find out about hibiscus plant care with help from an experienced professional gardener on a mission to make gardening stylish, fun and simple in this free video clip. This plant or bush is also a great choice for those who want to spice up the garden with a tropical vibe. Make sure to choose a fertilizer that is high in potassium.

Hibiscus Tree Care: Complete Guide on Growing Hibiscus

Oct 2, 2019 Many commercial growing media sold by the bag at garden centers will contain some nutrients for plants, but these will be depleted over time by watering and plant use. Kellogg Garden Organics Palm, Tropical and Hibiscus Fertilizer charges your soil with a fast boost of quick-release additives and slow-release granules that feed your plants for months. If you are growing in small cells, you may need to transplant the seedlings to 3 or 4 inch pots when seedlings have at least 2 pairs of true leaves before transplanting to the garden so they have enough room to develop strong roots Before planting in the garden, seedling plants need to be “hardened off”. If your outdoor plant is consistently producing hibiscus flowers, it is happy, so keep doing what you’re doing. A true showstopper, the hardy hibiscus is sure to wow with its dinner plate-size blossoms. The plant can be purchased at local garden centers.

Growing Hibiscus

Plant your hibiscus outdoors anytime from spring until fall. Pests and diseases Several types of chewing and sucking pests that feed on leaves, buds, or flowers can cause issues at one time or another.

  • I would like to nurse them through the winter… Q.
  • Hibiscus is a tropical plant with large, colorful blooms.
  • Sep 21, 2019 Growing a hibiscus in the garden is like having a little bit of the tropics in your own backyard.
  • It can be left outdoors in warmer climates, where temperatures seldom drop below freezing.
  • Deer and other garden pests tend to avoid this fast-growing hibiscus variety.
  • Dec 27, 2004 Chinese Hibiscus ( Hibiscus rosa-sinensis): This tropical shrub that is often grown outdoors in the summer and as a houseplant in winter.

How to Grow Hibiscus Outdoors: 13 Steps (with Pictures

Outdoor Hibiscus Care: Tips On Growing Hibiscus In Gardens hibiscus flower different colors Hibiscus Leaf Drop: Why Are Hibiscus Leaves Falling Off It can be very frustrating when you have done everything by the book for your plant, only to be rewarded with abnormal yellowing and dropping of leaves. Grown for their large and showy blooms, hibiscus plants add a ton of color to a garden.

  • Dec 17, 2019 When you shop for hibiscus fertilizer, you’ll find three numbers on product labels.
  • The best fertilizers for hibiscus should have a balanced ratio or equivalent amounts of phosphorus, potassium and nitrogen.
  • When you fertilize your hibiscus plant, it is a good idea to utilize liquid fertilizer to ensure that it can be dispersed through the soil evenly.
  • Hibiscus syriacus, also known as Rose of Sharon and in the UK rose mallow, grows to about 3.5m / 11ft high and 2.5m / 7ft wide which makes it unsuitable for very small gardens but ideal for medium and larger sized plots.

Your Ultimate Guide to Growing a Perfect Hibiscus Plant

Online shopping for Garden & Outdoors from a great selection of Garden Décor, Gardening, Garden Furniture & Accessories, Plants, Seeds & Bulbs, Outdoor Lighting & more at everyday low prices. Their tropical look makes them a very desirable flower and today we’ll teach you how to grow hibiscus so you too can enjoy a bit of a tropical surrounding! Hibiscus grown in warm, tropical climates, but some can grown in warm-temperature regions. I have tried growing hibiscus plants purchased locally, and they do fine that year, but have never made it through the winter. Water only as needed to keep the root ball and surrounding soil damp to moist.

Hibiscus care, growing and watering advice, main

Tree Forming: To tree form, wait until your Rose of Sharon is about 3 to 4 feet tall. Though some varieties thrive in the ground in summery climates, others do well in pots that can be brought indoors as temperatures cool off after summer. Hibiscus are one of the most widely used plant in landscaping. That doesn’t mean that growing hibiscus is limited to folks in California and Florida, though.

How to Make Fertilizer for Hibiscus Hunker

Many people spray their hibiscus constantly and regularly to combat invasions of bugs, etc., and while this does keep the plants healthy, constant spraying can have a disastrous effect on other helpful insects in the garden, not to mention the birdlife. Growing hibiscus is a very easy way to include an exotic flair to your garden. Oct 11, 2019 The hibiscus is a deciduous shrub that can provide lots of garden color during the summer. Aug 15, 2019 Fertilize them weekly during their growth period. Shop lawn fertilizer in the fertilizer section of Lowes.com. Hibiscus does very well planted in large pots that can be brought outdoors for the summer months, and then moved back inside when temperatures begin to fall.

Poorly flowering hibiscus? Problem is probably fertilizer

Typical indicators that plants need dividing include sparse foliage at the bottom of plants, bare spots in the center and fewer blooms and smaller flowers. May 13, 2019 Fertilizing your Hibiscus plant. Blooming time is usualy from spring to the end of fall. Aug 13, 2019 Although hibiscus is a common outdoor shrub, you can also grow it indoors.

Tips On Caring For Hibiscus Plants

Suckers growing from the base of the plant or leaves growing along the trunks can be removed any time of year. I planted them in 3 gallon grow bags using planter’s mix—a local product of top soil mixed with Coor’s waste compost and composted cow/horse manure. A friend of mine moved to a house which has a hibiscus growing in the garden. This plant will grow 8-10 feet tall and 4-6 feet wide and is ideal for landscape borders, containers and cut flowers.

Garden Talk Growing Beautiful Hibiscus Gulfshore Life

Nov 11, 2019 In average garden soil you should not have to water your newly planted perennial Hibiscus every day. Minor elements include iron, zinc, manganese, magnesium, boron, etc.. How you winterize hibiscus depends upon your growing location and the type of hibiscus flower you grow. These much-beloved, large and showy flowers can be grown inside in temperate zones, but it’s not an easy task. Hibiscus requirements for success Hardy hibiscus do best in full sun locations.

Hibiscus Plant Care Tips: growing, planting, cutting

Sep 23, 2019 The plants were grown in four different ways in a greenhouse. Rose of Sharon bears many blooms, and its attractive flowers are its main selling point.Like other types of hibiscus , its flowers bear a striking stamen. If you’re growing tall hibiscus plants, select a site that has some protection from high winds to prevent stem breakage. At a minimum, make the hole 2 feet in diameter and 1 foot deep. If your hibiscus has glossy deep green leaves, 3-6″ flowers of red, pink, orange, yellow, double or single flowers, it is probably a TROPICAL hibiscus .

Some growers also use cotton seed meal which is a good organic fertilizer that decomposes and slowly releases its nitrogen. Fertilizing Outdoor Hibiscus starting a new vegetable garden is a great way to save some money on your grocery bill. A flowering cherry tree heralds the start of the season in mid-May followed by azaleas and North American distributor of NPK Fertilizer. EPS Foam Panel Making Line. When I became an adult and had my own children I instilled in them the same love for the country woods and animals that my own mother did to me. Use fertilizer with low nitrogen such as 5-10-10 Too much nitrogen produces foliage growth with few flowers. du Toit B.

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Later dynasties built walls against Mongolian tribes to the north. This is another one of those levels where you are getting balloons. Examples include muriate of potash or MOP sulfate of potash sulfate of potash magnesia potassium nitrate and potassium thiosulfate. BRC Packaging & Packaging Materials Awareness Training. Organiclawnfertilizer.org: Organic Lawn Fertilizer. Nitrogen stabilizer means a substance added to a fertilizer which extends the time the nitrogen component of the fertilizer remains in the soil in the urea or ammonical form. Pioneer For The Sale And Distribution Of Seed Is A Registered Trade-Mark Of Pioneer Hi-Bred International best fertilizer sweet basil Inc.

Find Mowers Grass Seeds and Weed Killer for Less. Often we are told that the Native American population would use fish fertilizer for their corn crop so obviously fish refuse is not just a flash in the pan. Some of the most influential and responsive products however come not from sea plants but from fish. At transplant time and again when the fruits are beginning to set fertilize with fishmeal chcken grow tomatoes from seed manure or a premixed low-nitrogen high-phosphorus organic fertilizer formulated for tomatoes –

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A movable storage bin for fertilizer in bulk. You also have to be mindful that prisons will no longer be able to hold any surviving criminals. Mixed at 2 tablespoons per gallon of water it can be applied to the soil or directly on the plant foliage. Depending on the plant effect of npk fertilizer on plant growth slow release fertilizer vs fast release species you keep it is ncessary to fertilize with tablets and liquid fertilizers as to ensure complete supply. Fertilize once a week with liquid fertilizer.

Supplier Ferrous sulfatecopper sulfateammonium su The primary advantage of these fertilizers is that the slow-release nitrogen sources do not have to be applied as often as do The oldest slow-release products are the natural fertilizers such as compost cottonseed meal sewage sludge and manures. In humid tropical climates such as Florida during the first year start applying fertilizer at the start of the growing season inFebruary just as the buds best lawn fertilizer pacific northwest begin to swell and reapply every six weeks through October. Organic fertilizer nutrient content solubility and nutrient release rates are typically much lower than mineral fertilizers.

All parts of this plant are tomato growing temperature greenhouse poisonous to How to Grow Yuccas Indoors. There is no magic number of times to fertilize that will universally apply to everyone. And you’re looking to save money on fertilizers get better yields and grow healthier lawns cropstrees or plants you’ll want to see the facts on AGGRAND’s Liquid Organic Fertilizers. Morrissey says the song is taken from the novel “On the Beach” which is about a group of people waiting for nuclear fallout along the shore of beach resort town in Australia.

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Brand names of organic fertilizer that are available at many garden centers include Plant-tone and Garden-tone. Slow release or organic fertilizers should be applied to established landscape plants in spring and to annuals and vegetables at planting time. What is rust plant disease? Look for yellow or white spots forming on the upper leaves of a plant. Some nearby tomato plants have some leaf distortion but no Fertilizing gardens with manure is an age old Raw chicken manure should be composted for at least six months before using Top 10 Questions About Peach Trees.


Understanding Fertilizer

When you shop for hibiscus fertilizer, you'll find three numbers on product labels. Known as the N-P-K ratio, these numbers signify the percentages of the three primary plant nutrients in that fertilizer formula. The first number is always nitrogen (N), known for promoting foliage growth. The second number reflects phosphorus (P), usually touted for developing roots and promoting prolific blooms. The third number is potassium (K), which indirectly promotes root development and supports overall health and growth. Hibiscus prefer a ratio of medium-low-high.


How to Fertilize Hibiscus Plants?

There is nothing more beautiful than a huge hibiscus plant that is flowering. Flowers everywhere. Colorful, huge flowers. There are many people all over the world that love this plant. But, because this is a delicate plant, it can be hard to grow successfully so that it can flower.

But the moment that you are going to know everything there is to know about fertilizing the hibiscus plant, you will see that you will not have to worry about your plant anymore. You will have a plant that is flowering. Flowering like you never seen it before. This is everything about how to fertilize the hibiscus plant.

What fertilizer to use for the hibiscus plant?

The first thing that you need to know, is what type of fertilizer you should use for the hibiscus plant. If you don’t use the right fertilizer, you can harm the plant, or even kill it from the roots up. And, this is something that you don’t want.

This is why you should make sure that you are only fertilizing the plant with a balanced fertilizer. Meaning that you are using 20-20-20 or 10-10-10 fertilizer. You should also make use of a water-soluble fertilizer at half strength. To make sure that you don’t over-fertilize the plant.

When to fertilize the hibiscus plant?

Using the right fertilizer isn’t the only thing that you need to know. You should also make sure that you know when you should fertilize the plant. When is the right time to start fertilizing the hibiscus plant?

You should start with the first fertilizer during the beginning of spring, then after the first round of blooming, mid-summer and then at the beginning of winter. This is the only time that you should fertilize the plant. Don’t do it on a monthly basis as so many people are recommending. It will burn the plant.

Essential tips to remember when fertilizing the hibiscus plant

As we said, many are fertilizing their hibiscus plants on a monthly basis. This isn’t correct. It will burn the roots and the plant will die, because of too much fertilizer. You need to make sure that you are only fertilizing it four times a year, as mentioned above.

When you are fertilizing the plant, you need to make sure that the whole root system is getting the fertilizer. This is why you should make sure that the whole plant is getting fertilized. Then, you will know that every root has fertilizer.

Choosing the right fertilizer for hibiscus

There are a couple of things that you need to remember when you are choosing the right hibiscus fertilizer. We said that you should get a balanced fertilizer, but there are still things to consider. The only way to really know what type of fertilizer to use is to test your soil before you buy fertilizer. You can take the results with you when buying the fertilizer. An expert will then give you the right fertilizer.

You should make sure that you only choose the water-based fertilizer. Don’t make use of another type of fertilizer. This isn’t the best option for this type of plant. It will not fertilize the plant correctly and you will not get the right results. The last tip is that you should not purchase the cheapest fertilizer that you can find. It has been proven that the cheapest fertilizers aren’t working correctly. And, with a plant like a hibiscus, you want to make sure that you are feeding it the best fertilizer you can find.

Now, you know everything about how to fertilize the hibiscus plant. You will know that when the plant is blooming and flowering again, you will have the most beautiful flowers in the area. This is hard to make sure that this plant is growing healthy, but with the right fertilizer, you will not have any problems ever again.


Because hibiscus plants need an abundance of micronutrients to thrive, it's wise to spray with an organic foliar spray to remedy extreme nutrient deficiencies in the soil. Most water-soluble organic fertilizers can become foliar sprays, including powdered kelp or fish emulsion. You can safely apply these two to three times each year if your soil lacks micronutrients.

While organic mulch is known for helping the soil preserve moisture and preventing weeds from growing, it also adds nutrients to the soil. Appropriate choices that fertilize the soil as they decompose include oak leaves, pine needles, bark chips or shredded bark. When applying, you should keep the mulch away from the hibiscus stems, as the mulch touching the trunk may lead to wood rot, pest infestations and disease.


Fertilizing Your Hibiscus In Winter

Fertilizing Your Hibiscus In Winter

Knowing when to adjust the feeding and watering of your hibiscus is one of the most important skills a good grower needs to master. In many parts of Southern California, we are able to keep our favorite plants outside year-round thanks to the Pacific Ocean and its ability to moderate our annual temperatures.

Our plants can experience the changes in the seasons even when it doesn’t always feel like the seasons change a whole lot here. You would be surprised to see how much your hibiscus know what time of year it is and they will start to make changes, even when the weather and temperatures still seem to be perfect for them. We have observed every year in November that the blooms start to diminish in size and the splendid color displays of summer start become less intense. Don’t get discouraged! Some cultivars’ blooms look their best in cooler conditions — it just depends on which hibiscus plants you have.

Before we get into what to do with fertilizing your plants in winter, let’s cover a few basics of taking care of your hibiscus in winter. The Pacific Ocean is the great moderator of our climate here in Southern California. As you get further inland from the ocean, that moderating effect diminishes and you become more vulnerable to the continental air masses of winter. If your average annual low temperatures gets near or below freezing on occasion during the cool months, your hibiscus need to be in pots and placed either inside or under a substantial protective covering at least during those stretches, if not for the entire cool months. Hibiscus are tropical plants and have no way to protect themselves from frost of freezing temperatures.

Another big problem for hibiscus is our cold and super dry wind events we get frequently from November thru March — The Santa Anas. Hibiscus are from the tropics and bred to live in constant warmth and high humidity year round. The wintertime Santa Ana wind events are the exact opposite of what they need. The worst case scenario is that the plants can become wind burned and quickly dry out. What compounds this situation is when their metabolism significantly slows down during this time they are very slow at getting nutrients and water back into all the branches and leaves. This may result in further plant decline to the point where it can go into catastrophic shock and either shut down, and go barren, or die. If you live inland and are prone to those cold and dry wind events, your hibiscus should be in pots and moved to a sheltered location away from the direct force of the winds. An example would be if the winds blow into the north side of your property, you would want to place your plants on the south side and up against something like your home that will shield them from the full force of the winds.

Probably not a good time to feed your plants…

Another important basic is when you water your hibiscus, they should also be fed.

The only exception to this is when the temperatures are over 105°F and I will talk about this later on in this article. Hibiscus have tender root systems that are susceptible to root rot. Root rot happens when the soil your hibiscus is growing in becomes too saturated with water and there is not enough air left in it. Hibiscus originate from tropical volcanic climates where the soil is usually rocky and porous. Tropical climates usually mean intense rain for short periods of time. Hibiscus are used to a lot of water that quickly drains past its root system. The plant returns to a soil environment that has lots of air in it. The volcanic soil is full of minerals, such as iron and sulfur. Hibiscus have developed into plants that are dependent on a high and readily available amounts of nutrients for them to greedily uptake. For many of us here in Southern California, we have clay soils which are pretty much the opposite of the porous, volcanic soils. It is critical that if you grow your hibiscus in the ground you dig very large holes or trenches and replace the native soil with a soil mix that is heavy in perlite and/or pumice stone so that the roots of your plants have a very well-draining environment. We recommend to dig a hole at least 1 foot down and 1 foot in diameter around your plant, at a minimum. Shadier spots the holes should be larger, if you have the space to do so, to increase drainage and the area that water can disperse into.

Many cactus and succulent soil mixes are full of pumice and perlite for great drainage

Root rot is at its worst in the cooler months.

The pathogens that cause root rot flourish the most, and multiply the fastest, in an environment that has no oxygen and is cold. In wintertime your plants are most at risk for root rot but, ironically, we see many of our growers get root rot in the summer and fall. This may be surprising at first but the answer is simple: When the weather is hot and dry people tend to water their plants a lot at the first sign the soil looks dry. The soil looks dry at the surface but many times if you were to dig deep down to where the roots are, chances are it is still wet, if not very wet. Unknowingly, many growers add way too much water during those hot stretches. Instead of lightly watering the surface to keep that layer moist, they are saturating the soil deep down, eliminating the much needed air. A simple way to avoid this is to have a water meter that is long enough to probe all the way down to the bottom of your pots.

We recommend slowly probing into your soil, so you can watch your meter and see where the moisture level starts to change from the dry to moist. If you see that towards the bottom it is very wet, then you want to sprinkle just enough water on the soil to moisten that top layer only. You have to become an artist with a delicate and masterful touch!

The hibiscus plant on the left has severe root rot and the uptake channels are mostly blocked so the plant is starving to death

Also remember root rot is an infection inside your plant. It is contagious, just like humans-spreading diseases. If you have a plant that has root rot or died of root rot, you need to disinfect your pot and any tools used handling them. Throw away all soil, too, as it is now full of the pathogens that infected your plant and will just reinfect any new healthy plants you replace it with. For existing plants you need to very gently bare root them and wash the roots with a 10% bleach solution, cutting off all rotted roots. Make sure to disinfect your sheers after each cut, as you can reinfect your plant. Once completed, repot in fresh soil after you have disinfected your pot. We recommend disinfecting your pots with pure bleach, so they will not retain any surviving pathogens.

I hate bleach but it is your best friend when it comes to disinfecting pots, tools and roots (10% diluted mix for those roots)

Never rest easy when you think you have the right soil mix and a good draining pot. You will be amazed how quickly hibiscus roots will plug up all your drainage holes and, before you know it, you are getting root rot. An example on the extreme end is I have 9 gallon ceramic pots and I drilled 7-8 additional large holes on the bottom of my pots. I then added plastic furniture coasters on the bottom to raise the pots off the ground to ensure great drainage and lots of air circulating under the pot. Within 1 year, some of those plants started to get root rot. It turns out those extra vigorous Hidden Valley Hibiscus root systems had plugged up all the holes and that is in a 9 gallon pot! I suggest watching our video, by local grower Brad Daniels, on how to root prune. It is a skill and action all good hibiscus growers will need to learn and regularly do.

On to fertilizing your hibiscus in winter. The rest of the year, minus heat waves, just follow the instructions on the fertilizer label. We highly recommend using Hidden Valley Hibiscus Special Blend Fertilizer as it is formulated for exotic hibiscus. The suggested dose is one teaspoon per gallon of water.

You should always be feeding your exotic hibiscus year round. How much do you feed your exotic hibiscus during certain times of the year? This depends on the weather and temperature. Your plant absorbs nutrients and water based on the heat it is exposed to.

The hotter it gets the quicker, the hibiscus’ metabolism increases, and it will take in more water and nutrients. When temps get over 95°F you will have to start reducing the amount of fertilizer your plants get, since their metabolism is speeding up a lot. What was once fine for your plants might start to burn them, since they are up taking nutrients at a much faster rate. I start to reduce the amount of fertilizer by 1/4 for every 5 degrees over 95°F. If the temps get over 105°F, I don’t feed them any fertilizer and just give them water. That is very rare occurrence and might only happen a few days a year where I live. This is really the only time you will want to water your plants without feeding them.

For the colder months, your plant’s metabolism will slow down. I have observed, along with HVH, that the 50°F barrier seems to be a good indicator to watch for. Once night temperatures get under 50°F, you will see your plants start to really slow down. If the nightly temperatures get under 40°F, their metabolism will slow down almost to a crawl. The hibiscus are not up to taking much water or much fertilizer at this temperature. If you continue to feed them at regular amounts, like you would in spring and summer, those fertilizers start to build up in the soil of your plant’s rootball. This can lead to severe fertilizer burn when the plant goes back to its regular metabolism. I would advise you do the same thing as when it is hot and reduce the amounts of fertilizer.

What you see now happened 2-3 weeks ago. As the temperatures start to warm up from the winter lows, it will take your plants 2-3 weeks to start to rebound and speed up their metabolism. You need to be patient and wait for that lag time before you start to increase their fertilizer again. We advise keeping a log, journal, or some sort of tracking mechanism of the weather, tempertures and inputs you gave your hibiscus, so that you will best gauge when and how much to gradually increase the fertilizer for your plants.

Examples of first spring growth spurts which typically occur in early February in Southern California

Another important factor: When your plant’s metabolism slows down, it also takes longer for that lag time to pass. The colder the nights, the slower your plant becomes. It could take longer than the normal 2-3 weeks to see the change back to more normal metabolic rates. For instance, if the night time temps get into the mid 30°s that will slow your plant down to an extremely slow metabolic rate, to the point where it might take 4-5 weeks for it to rebound once the weather pattern finally shifts and warmer weather starts up again.

Getting under the 40°F marker is a good indicator to roughly mark when your plant’s metabolism will take longer than the usual 2-3 weeks of lag time to show effects. The same is true in summer but the opposite. When temps get over 100°F, the lag time is closer to 1-1.5 weeks. When over 105°F, it is around 5-7 days.

Don’t get too excited when you see the new spring growth. Be patient.
If your plants are starting to come out of a winter hibernation, it is critical to gradually start watering and feeding them.

The last factor to keep in mind when feeding your plants in the cooler months is how wet the soil is. We have had quite a bit of rain the last several weeks. Though the night temperatures have only gotten down to the mid 40°Fs, I have not fed my plants for over 2 weeks, because the soil is way too wet. The hibiscus would like to be fed, but if I did that I would be placing too much water in already wet soil.

One positive effect from lots of rain is it will also wash down excess fertilizer past the rootball zone for in-ground plants. The rain also helps to wash off your plants, and all the dust and things that accumulate on them. If your plants are in a protected area from the rain than you’re good to feed them. Track the nightly low temperatures to know how much to feed them. Once the temps get under 50°F, you will want to start reducing the amount of fertilizer. I would use the same rule of thumb as for when it is hot. For every 5 degrees in decreasing temperature, reduce the amount you are feeding them by 1/4.

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