Blue-stem Yucca


Succulentopedia

Yucca gigantea – Spineless Yucca

Yucca gigantea (Spineless Yucca) is a large succulent up to 30 feet (10 m) tall, with a spread up to 15 feet (4.5 m). It may have a thick…


Yucca Species, Blue-Stem Yucca, Giant Yucca, Soft-Tip Yucca, Spineless Yucca, Yucca Cane

Family: Asparagaceae
Genus: Yucca (YUK-uh) (Info)
Species: gigantea (jy-GAN-tee-uh) (Info)
Synonym:Yucca eleana
Synonym:Yucca elephantipes var. ghiesbreghtii
Synonym:Yucca ghiesbreghtii
Synonym:Yucca guatemalensis
Synonym:Yucca mazelii

Category:

Water Requirements:

Average Water Needs Water regularly do not overwater

Sun Exposure:

Foliage:

Foliage Color:

Height:

Spacing:

Hardiness:

USDA Zone 9b: to -3.8 °C (25 °F)

USDA Zone 10a: to -1.1 °C (30 °F)

USDA Zone 10b: to 1.7 °C (35 °F)

USDA Zone 11: above 4.5 °C (40 °F)

Where to Grow:

Suitable for growing in containers

Danger:

Bloom Color:

Bloom Characteristics:

Bloom Size:

Bloom Time:

Other details:

Soil pH requirements:

Patent Information:

Propagation Methods:

Seed Collecting:

Regional

This plant is said to grow outdoors in the following regions:

Fresno, California(2 reports)

Cape Coral, Florida(2 reports)

Gardeners' Notes:

On Jan 5, 2021, UtahTropics12 from Salt Lake City, UT (Zone 7b) wrote:

This plant does SURPRISINGLY well in the more mild zones of the Pacific Northwest. I’ve seen them planted as far north as Salt Spring Island, B.C. ( rare) But specifically i’ve seen amazing large specimens further south in Brookings/ Harbor, Oregon (zone 9b/10a) There is probably over 100 specimens that i’ve seen personally around town, and a lot that are in the 10-25 ft range. This is without a doubt one of my favorite yucca species, they are one of the most tropical and exotic looking species. I wouldn’t try this yucca anywhere north of zone 9a in the PNW, but it’s possible you could maybe get away with it in zone 8b with a good microclimate and some protection. If you are in a sheltered, mild location in the Pacific Northwest zone 9a or above I would highly recommend trying this beautif. read more ul exotic species. It does very well with high rainfall compared to most other yuccas.

On Aug 9, 2020, glasalle from Austin, TX wrote:

In Austin, this needs to be in the shade to do well and look good. Our hot summer sun is not good for it. It needs very little water here.

I believe it is a 9a plant, not 9b. We had prolonged below-freezing cold for a few days one year with a low of around 18F. That killed the top half of the plant, but it came back. Other than that, it does not mind even low 20s. I suspect that short periods of mid teens would not kill it.

I find the foliage attractive with the benefit of not having dangerous sharp or stiff leaves like some yuccas.

On Mar 22, 2013, luvyuccas from AXTON, VA wrote:

I would like to ask some questions about yucca elephantipes i have one and want to plant outside in ground im in zone 7 i would like some help from other elephantipes growers

On Apr 13, 2010, rucky from Huffman, TX (Zone 9a) wrote:

Gotta agree with palmbob. DON'T plant this tree where you will have to remove them later. I bought one of these as a house plant for my wife years ago. It got huge so before my daughters wedding I planted it in the front flowerbed and I liked the looks of it. Then there were two and at last count 8 all about 15 foot tall. We spent the better part of yesterday trying to cut down and dig up the trees. The bottom ball of one is at least 4' wide and I can't find the bottom of the root so I cut them off at the ground and I am trying to kill the roots with a brush killer and stump killer before I dig them up. hopefully they wont come back this way.

On Feb 2, 2010, juliep127 from Louisville, KY wrote:

I have several of these in my house. One is 15ft tall in my house. I water it every now and then like a cactus. Mine do great. I put them out in the summer to catch the rain and bring them in during the winter. Mine are great.

On Jan 3, 2010, peejay12 from Porthleven, Helston, Cornwall,
United Kingdom (Zone 9b) wrote:

I live in Cornwall, (zone 9b) England, UK, and have had a positive experience with this plant - - so far.

In the cool, wet British climate this plant is somewhat more tender than in the US, and is not often grown successfully. Even in the mildest areas it will be damaged or killed by frosts below -6 C. My plant survived -7C last year, but only because it was close to the house. This was an unusually severe frost for this region. I would suggest growing it with extreme drainage, in a sheltered position.
The trunks seem to be hardier bthan the growing tips, so the obvious solution is to make a 'hood' to protect the growing points. A polyester pillow cover is good -- ideally this should be removed whenever the weather is warmer. Even if the crown of leaves is killed o. read more ff, regrowth slowly starts in June from shoots which appear on the trunks and bases. I noticed how the plants over six feet high escaped damage, being above the cold air which tends to be coldest near ground level.

In the colder inland areas of California these plants are constantly cut back by frosts, and consequently produce many new trunks, gradually forming a huge thicket of trees, all growing from a wide-spreading base, twenty feet across or more - a bizarre wonderful sight.

Definitely a plant worth every effort to grow - even if you live outside of zone 10

This plant is closely related to Yucca aloifolia - both have similar-shaped leaves, although those of elephantipes are larger, softer and the spine is soft and flexible, and both have minutely serrated leaf margins. Many people in California have noticed that the 'classic' type - with 4 -5 foot leaves is less often seen, while a shorter leaved type is getting commoner. Perhaps these plants are hybrids with Y. aloifolia, or gloriosa -- they seem to be hardier than the 'classic' form, and are the plants we grow in the UK (known as the Marks and Spencer Yucca)

I strongly suggest that someone should try to cross this plant with Y recurvifolia, the resulting hybrid could have the tree-like growth of Y elephantipes, and the recurving leaves and some of the hardiness of Y recurvifolia --- and could be grown in colder regions.

On Dec 31, 2009, weka2005 from Christchurch,
New Zealand wrote:

I bought one of these plants from a lady here in Christchurch about 2 months ago. Its in a 12 inch pot and was about 3 feet tall with 1 trunk and 16 or 17 leaves. The lady told me that they like it dry and to only give it a cup of water once every couple of weeks. I did this for the first month but since then have given it good regular watering and its really taken off. Sprouted an extra 6 or 7 leaves at the top. Seems I got bad advise. Only thing is that its got a skinny trunk over a foot long, to the bottom leaves, but only about 1 1/4 inch diameter. I've seen shorter ones with much thicker trunks and extra branches, Anyone got any advise? Is it possible to encourage lower growth. I am a bit of an amateur.

On Nov 12, 2009, stephenp from Wirral, UK, Zone 9a,
United Kingdom (Zone 9a) wrote:

Absolutely love this plant, one of the best architectural plants you can get for the garden.

Despite its connotations, this Yucca does not need desert aridity, and actually prefers cool, humid conditions.

In the UK this is a plant that will survive in some places and not in others. Large specimens can be found in seaside resorts, two examples being Portsmouth area and Llandudno.

In my area Yucca guatamalensis are becoming more popular, and many are popping up around gardens around the peninsular, there are also a few large ones around and about.

My Yucca g. started it life being grown in an unheated greenouse but 2 years ago we put it outside in its pot, and since then it has flourished, taking temperatures down to -5C.
. read more
Last year we put it in the ground, and ever since it's been growing very fast.

Unfortunately however the last winter killed off many of this Yucca species in zones 8 and lower in the UK which suggests it is a borderline plant for the UK.

A tip I would suggest is that as these are sold as houseplants in the UK with double trunks, grow them until they pot bound - this creates great architectural value to the trunk - then plant them in the ground, otherwise they tend to grow thin trunks.

On Apr 30, 2009, hoosierfarmboy from Franklinton, LA (Zone 8b) wrote:

During December 2008 my wife and I were helping clean one of the historical cemeteries on the south side of New Orleans (members of Save Our Cemeteries, not-for-profit) and this bedraggled seven-foot tall potted plant was dragged to the gate to be discarded. I asked if I could have a try at rejuvenating it and perhaps rooting some cuttings for use throughout the cemetery. I was given permission, but it was late April 2009 before I was able to retrieve the plant. What kept it alive during that time I have no idea, but today I brought it home, even in more of a sad condition than before, but alive. It is extremely rootbound in a 12-inch pot. I poured four gallons of water on it, slowly hardly any came out of the bottom of the pot and tonight it already looks better! Now for the TLC!

On Feb 19, 2009, JamesPark from Auckland,
New Zealand (Zone 9a) wrote:

A very attractive plant with large white flowers and stunning foliage. In the many areas of the UK many plants are put outside after outgrowing their surroundings inside as a houseplant. The plants flourish in the plentiful rain, and grow steadily all year round. However, they burn if planted in the sun immediately, and so must be gently acclimatised. A much nicer alternative to Cordyline australis.

On Dec 29, 2008, BayAreaTropics from Hayward, CA wrote:

I would strongly differ on this plant with the negative votes. To me it's an icon of warm California-along with Washingtonia and Bougainvillea. Some plants trained to only a few trunks develop massive bases larger than Beaucarnea's- only rivaled by the largest Aloe barbarae's. And it can do it while handling temps into the teens. Not invasive at all,just where planted, it's tenacious to cling to life. It's not as if it spreads itself around. They can flower almost any time all year..some spring,mine in fall. Although almost all are now hybrids,I would say the original soft tipped plant is lost to the trade. Tips are sharp,the trees make good bird habitat,fortresses to cat predation!
Every time I look at one I planted as a cutting stuck in the ground 20 years ago,and now with a HUGE . read more trunk 4-5' wide,I think how lucky I am to have such a great looking plant that asks nothing of me-It never is watered or fertilised,makes no mess or bothers other garden plants. What more do you want?

On Jun 30, 2007, macybee from Deer Park, TX (Zone 9a) wrote:

Formerly Purplehbee. My plant is still going. It's had several branches fall off from being too heavy. We have even had to cut some off being in the walkway.

Mine is growing out instead of up now. Stop!
Also mine has never flowered. Any Hints?

On May 12, 2007, basilio from Athens,
Greece (Zone 9b) wrote:

This is by far the most commonly grown subtropical plant in Greece, mostly as a balcony/yard potted specimen but also as a garden or even indoors plant. In our climate it's virtually bulletproof and it can sustain cold, heat, sun, shade, drought and general abuse without the slightest problem. It's not the most ornamental plant one can find, that's for sure, but it's cheap, fast-growing and reliable, and even adds a bit of "exotic" look. Palmbob is right, is VERY difficult to kill this plant (it keeps growing back again and again) and it's certainly over-used, but I think this is due to its adaptability and also, the fact that it's ideal for novice (or lazy or indifferent) growers & gardeners. Having said that, a nicely maintained or tree-size speciment is always a nice sight.

On Mar 17, 2007, TheresaHill from Lincoln, NE (Zone 5b) wrote:

We bought this plant in 2003 while vacationing in Florida. didn't even know what it was. It was about a foot tall. It eventually grew to over 5 ft. in a pot and developed several offshoots. Last summer, we took it out of the pot which it had outgrown and just started chopping pieces off. We repotted and now have 6 plants, two of which are at least 5ft. We are going to plant a couple outdoors and see what happens. We live in Lincoln, NE zone 5B. Let you know how they do. We affectionally called it the DEATH PALM (until we found out it was a Yucca) it WILL draw blood. Palmbob is right. you can't kill this plant.

On Nov 5, 2006, PeteOZ from Melbourne,
Australia wrote:

This plant is really easy to grow and Im suprised by how much stores will charge for this weed, given its growth speed, $30 for a 30cm plant.
In Australia there are three forms available, Gold Star, yellow marginal variegation, Silver Star (white marginal variegation) and the plain wild type which is very fast given good conditions and lots of water and fetiliser. These guys love stuff like fish emulsion and seaweed as well as lawn fertiliser, just throw it all on!. Another way to speed them up is to put your washing grey water on them, this makes them go ballistic.

I spent alot of time hacking of rogue shoots off a 5 meter specimen, but these make great plants to propagate, just stick them in a pot, strip off the bottom leaves and they will be happy. The one good t. read more hing is that they are relatively spineless so are good for living areasa and provide good tropical foliage.

The flowers are good but not as spectacular as other species as gloriosa and they flower relatively short. My large one was also attacked by scales, however honeyeater birds have been coming and removing them so this has helped the plant alot. As a rule this species likes more water than many other species and giving it really makes them grow faster.

On Feb 25, 2006, BUFFY690 from Prosperity, SC (Zone 7b) wrote:

I acquired my plant through a trash pile at Sam's Whoesale Club. Someone had knocked off one little piece from another plant and I took it home and simply stuck it into a potting mix about 1/2 sand and 1/2 Nursery Blend Potting Mix (Fafard 3B). It took to the medium well with only keeping it barely damp. It has now tripled in size, and has lost its lower leaves and I believe starting to trunk. I keep it outdoors in the spring, summer, and fall, then put it in my bathroom for the winter. It gets fertilized about 1X every three months (but I am going to feed it more regularly this year to try and get a little more size to it this year).
Fabulously easy plant
Recommend for any beginner.
Does stand moderate neglect.
A+

On Jun 25, 2005, jessmerritt from (Zone 7b) wrote:

This is actually a wildly popular houseplant where I live. Large specimens can be found cheaply in Walmart, Lowe's and Home depot. I've got one with four main stalks, the tallest being 9 ft. tall, and each stalk has many pups. It's a low care houseplant as long as you provide enough light. Mine prefers minimal water.

On May 25, 2005, koolkatken from Auckland,
New Zealand wrote:

Easily grown in Auckland, NZ. Have some in pots and some in garden- definitely faster in garden, but even my potted one has grown to about 6' in about 2 years. Easy to transplant (if you can still lift). Will survive wrenching from ground and re-planting without a hiccup.

On Nov 25, 2004, poirot2001 from Gold Coast,
Australia wrote:

Yucca elephantipes orginated from Mexico.In Australia only about 10 years. In the flower shops sold very expensive.
I think it will be a cheap plant soon here because propgating it is so easy. The plant can live without water for months. I love this plant.

On Jun 7, 2004, rapturre from Tacoma, WA wrote:

Excellent species - Indoors and Out. Particularly nice looking in rock gardens & rock stream beds. Almost impossible to kill. Reduce water and increase sun indoors to prevent leaf loss. Easily propogated without leaf loss by air layering.

Long spindly plants can be chopped into 6-10" sections, ends sealed with mud or clay and will last for months out of soil. When ready put one end in dirt and it will spring to life in a few weeks. Mature indoor plants can easily have stalk base diameter over 3". Group 3-4 larger plants to create humidity zones. There sharp blades help protect more delicate plants placed under from being walked on.

On Apr 15, 2004, palmbob from Acton, CA (Zone 8b) wrote:

This is a species that is EVERYWHERE in Southern California. another nearly impossible plant to get rid of once in the garden. Moved into a home in Thousand Oaks 10 years ago and there were 3 of these monsters- messy, scraggly things that I laboriously hacked down, and then dug up when they promptly grew back. Digging them up was a challenge- deep and heavy root ball, almost like an extension of the fat trunk (nearly 4' in diameter). And they grew back AGAIN. only now there were hundreds of them. every little bit of root or stem or whatever seem to begat more yucca.

If well grown and groomed nicely, it can make a good specimen plant- huge yellow-white flowers in the spring.. but no one bothers to take off the dead leaves and so it just looks messy. Mess attracts . read more mess and it is often at the base of these plants, or among their leaves, where some people seemed drawn to toss their trash.

I used to like this plant OK, but now I'm on a mission to get rid of it in my garden where I can (good luck!). Maybe I wouldn't be so negative if they weren't on nearly every street in the Los Angeles area.

New comment: now that I live in Acton outside of Los Angeles, I have a newfound respect for this species and its relative hardiness, though it is somewhat marginal in Acton (where it snows sometimes). Plants are NOT invasive here (almost nothing is invasive here save a few perrenially dead-looking natives and tumbleweeds) so I am once again trying to grow it..

Variable species- most comon form seen are those with lancelote stiff, straight leaves. But there is also a form with longer, somewhat floppy leaves (perhaps floppy only because of the added length) that has a more tropical appearance.

Trunks can become massive affairs growing to several yards in diameter.

On Mar 23, 2004, ATF from Spring Hill, FL wrote:

Grows fast, easy to propagate from cuttings, however looks "ratty" as lower leaves quickly look beaten up and must be removed.

On Jul 4, 2003, purplehbee from Deer Park, TX wrote:

I have one that looked like this first picture. It was not growing just sitting there looking same ole, same ole.
I threw it out on the back of my deck and several years latter, its taller than I am 5'7". Growing in the ground now.

On Jan 28, 2003, CostaRica from Guayabo de Bagaces, Guanacaste,
Costa Rica (Zone 10b) wrote:

The large single 'flower' is edible, and is highly sought after here in Costa Rica.


HOW TO PLANT YUCCA

When to plant:

Start seeds indoors at any time, or outdoors in spring. To start hardy varieties outside, spring temperatures should be 55 to 65°F. Wait until temperatures are 66 to 75°F for more tender varieties.

Where to plant:

Select an area that receives partial to full sun, but most importantly, a location that is well-draining. Yuccas will develop root rot quite easily if there is residual or standing water. When choosing a location, consider the mature size of the yucca plant, as some grow to be quite large. Locate in areas where they can be appreciated, but not where their sharp, spiny leaves can be accidentally bumped into away from walkways and play areas. Massive root structures can grow over time that have the power to crack foundations, disrupt retaining walls, and invade pools and irrigation pipes. These large root structures are extremely difficult to get rid of and any remnants left behind can grow more yuccas.

How to plant:

Soak seeds for 24 hours prior to planting to help with germination, or rub with sand paper to scar the surface. Plant at a depth of one to two seed lengths. Keep the seeds moderately moist, and you should begin to see signs of germination in about 3 to 4 weeks. Transplant the seedlings at about 8 weeks into bigger pots or permanent location. See more about growing from offsets below, under Propagation.

Other:

Yucca growth is quite slow and variable, especially if grown from seed. It may take a few years until they flower.


Watch the video: Easy Water Propagation of Yucca Plant. Grow Roots in Water


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