Torenia - Scrofulariaceae - Cultivation and care of Torenia plants


HOW TO GROW AND CARE FOR OUR PLANTS

TORENIA

ThereTorenia it is a small bushy plant, which produces numerous very colorful flowers and for this reason used to make hedges and colored borders.

BOTANICAL CLASSIFICATION

Kingdom

:

Plantae

Clado

: Angiosperms

Clado

: Eudicotyledons

Clado

: Asteris

Order

:

Lamiales

Family

:

Scrofulariaceae

Kind

:

Torenia

Species

: see the paragraph on "Main species"

GENERAL CHARACTERISTICS

The genre Torenia of the family of Scrofulariaceae includes annual or perennial herbaceous species native to the wooded areas of Africa and tropical Asia up to 3000 m s.l.m.

These are plants with an erect or bushy habit, however not particularly developed in height (no more than 30 cm), characterized by very branched stems and leaves of a beautiful light green color, opposite, mostly lanceolate, whole or lobed. The flowers gathered in racemic inflorescences are trumpet-shaped, widening in the terminal part forming a lobed upper lip and a trefoil lower one.

MAIN SPECIES

There are several species in the genus Torenia but the one commonly used for ornamental purposes is only the

TORENIA FOURNIERI

There Torenia fournieri It is an annual plant native to tropical Asia, characterized by long petiolate ovate leaves with indented margins, up to 5 cm long and 2 cm broad, rounded at the base and almost heart-shaped, with a beautiful pale green color. The flowers are gathered in white corymb inflorescences flecked with lilac-blue, up to 3.5 cm long and a yellow throat.

There are numerous varieties among which we remember: Torenia fournieri'Alba' with a white corolla with purple spots; there Torenia fournieri 'Grandiflora' with particularly large flowers.

CULTURAL TECHNIQUE

There Torenia they are not difficult plants to grow as they do not require great cultivation care even if they are delicate.

They can be grown both in full sun and in partial shade and in consideration of their bushy habit they can be successfully grown both as drooping plants and to obtain rich flowering pots.Due to their tendency to be ground cover they are also widely used to create hedges or borders.

WATERING

During the spring-summer period the soil must always be kept moderately humid especially if they are in full sun as they are plants that have intense transpiration. But beware of stagnant water which are not particularly tolerated.

TYPE OF SOIL - REPOT

The Torenia they are plants with an annual cycle that die after flowering, therefore they do not need repotting. In any case, a universal soil enriched with organic matter and well draining is an excellent growing medium.

FERTILIZATION

During the spring and throughout the summer, administer a liquid fertilizer once a week with the watering water as they are usually grown in small pots and therefore exhaust all the nutrients very quickly. potassium (k), to favor flowering.

PRUNING

There Torenia it must be topped to favor a bushy development.

FLOWERING

Flowering begins in spring and continues uninterruptedly until autumn, after which the plant, having finished its life cycle, dies.

MULTIPLICATION

The multiplication of theTorenia happens by seed.

MULTIPLICATION BY SEEDS

If sowing is done in seedbeds, the seeds are planted at the end of winter (February) in a compost formed by fertile soil and coarse sand.

The tray containing the seeds should be kept in the shade at a temperature of 18 ° C. and it is essential that the soil remains constantly moist (use a sprayer to moisten the soil) until the moment of germination.

The tray must be covered with a transparent plastic sheet that will guarantee a good temperature and avoid too rapid drying of the soil. The plastic sheet must be removed every day to check the degree of humidity in the soil and remove the condensation that will surely have formed on the plastic. Once the seeds have germinated, the plastic sheet is removed and the box moved to a brighter location (not in direct sun).

It is important to eliminate the less vigorous seedlings to give space to the more robust ones.Once the seedlings are large enough to be handled, they are transplanted into 12 cm pots in groups of 5-10, thus allowing them to strengthen by clipping them periodically to grow the bushy plants .

If you plan to do sowing directly in open ground, it is necessary to work the soil in order to eliminate the surface crust and make it at least compact. after which in mid-spring, with temperatures around 18 ° C and no more danger of freezing, it is sown.

If you transplant seedlings grown in seedbeds in full ground,the transplant must be done in spring (April) when the temperature has stabilized around 18 ° C and there is no longer the risk of frost.

PARASITES AND DISEASES

They are not prone to disease.

CURIOSITY'

There Toreniatakes its name from the Swedish clergyman and naturalist Olaf Toren (1718-1753) who discovered the Torenia asiatica.


Terrace plant

- tulip "> Terrace plant

Before setting up a roof garden, it is advisable to consider some aspects:

- types of containers available

- coexistence between plant species


Torenia - T. fournieri - Cultivation and care

❀ FAMILY: Scrofulariacee

❀ SCIENTIFIC NAME: Torenia fournieri

☛ Annual with fleshy, prostrate, highly branched stems, covered with small oval leaves with a serrated edge, of a bright green color.

☛ From May to October it produces many trumpet flowers of white, blue, purple, pink, yellow or purple color, usually with a yellow, white or brown throat, always in a contrasting color.

☛ It is ideal for baskets because the stems fall into a cascade of flowers or in the garden as a ground cover.

☛ It needs very bright locations, in full sun or partial shade (preferable in the hottest periods of summer).

☛ Want humus-rich, very loose and well-drained soils.

☛ It should be watered regularly, allowing the soil to dry slightly between one watering and the next.

☛ Provide a dose of liquid fertilizer for flowering plants in the watering every 10 days.

"Coltivodame" promotes love and respect for nature. This portal has as its purpose the study, documentation, teaching and discussion generated by these issues. The information provided is not for profit. The proposed articles are inspired by and refer to third-party books. For in-depth knowledge, you can consult the bibliography (with its direct link to the author): HERE


Take care of the plant

There plant of the Torenia it prefers a soft, fertile and well-draining soil in a partially shaded place. It is advisable to add peat and sand to the earth to avoid water stagnation. Repot the plant in early spring, when the roots begin to come out of the pot, replacing both the container and the soil. If necessary, fertilize during the flowering period with a liquid fertilizer every 20-30 days.

available in 14cm pot n

available in March, April, May, June, July n


Torenia - Scrofulariaceae - Cultivation and care of Torenia plants

Heliopsis, genus of 12 species of herbaceous, perennial and annual plants. The perennial species are cultivated in the borders together with the Phlox, the Salvia, the Chrysanthemum and the Delphinium.
The Heliopsis are planted in October or March, in all garden soils, preferably loose, in the sun or, in the southern regions, in partially shaded positions. In October-November the flower stems must be cut at ground level.

Heliopsis helianthoides: plant native to North America, 50-70 cm high, distance between plants 40 cm. It is a perennial, rustic species, with thin leaves, less rough than those of H.scabra, ovate or ovate-lanceolate. The flower heads, yellow, 5-6 cm wide, bloom from June to August.
Heliopsis scabra: plant native to North America, 1.2 m tall, distance between plants 40-60 cm. It is a perennial, rustic species with rough stems and leaves. The flower heads, simple, yellow, similar to those of daisies, 8 cm wide, carried by erect, branched stems, appear from June to August. Among the varieties are remembered Gigantea 1.2-1.5 m high with semi-double, deep yellow flower heads Golden Plume, 1.2 m high with double bright yellow flower heads Goldgreen-heart, 1.2 m high with double lemon-yellow flower heads, suffused with green in the center Incomparable, 1 m high with double, yellow-orange flower heads, similar to those of the Zinnias.


Reproduction: in autumn, or in spring, the tufts are divided and replanted immediately.
exposure:
flowering: from June to August

Ligustrum (Privet)

Ligustrum (Privet), genus of 45 species of small trees or shrubs, evergreen and deciduous, suitable for forming hedges and widely used in city street trees.
They are planted in all fertile soils.

Oxalis

Oxalis, genus of 800 species of herbaceous plants, perennial and annual, and of shrubs, also including bulbous and tuberous species. They have palmate leaves formed by 3-12 leaflets. The perennial, rustic species described are.

Impatiens (Balsamine)
L' Impatiens (balsamine), genus composed of 500-600 species, is native to China, Malaysia, tropical India and tropical is an annual herbaceous, but there are also perennials, 20 to.

Pieris

Pieris, genus of 10 species of evergreen, rustic, compact flowering shrubs, belonging to the Ericaceae family, which must be cultivated in limestone soil. In spring they produce similar flowers.

Gazania (Gazania)
There Gazania (Gazania) it is native to Southern Africa, includes about 25 species and is a perennial or annual herb, with bushy vegetation and often creeping stems. The leaves are radical,.

Sicilian-style stuffed oranges
Take four oranges and, with the help of a small knife with a sharp and sharp blade, cut the cap of each fruit in order to obtain many.

Laurus (Laurel)

Laurus (Laurel), genus of 2 species of shrubs or small evergreen trees, rustic. The described species, widespread spontaneously in the Mediterranean regions, is cultivated in the open ground or in tubs and can also be used.

Olive oil

Olive oil, genus of 100 species of floriferous, evergreen, semi-rustic or delicate shrubs, belonging to the Compositae family, especially suitable for gardens located in sheltered areas with not particularly winter climates.

Grevillea
There Grevillea, genus of 90 species of evergreen shrubs and small trees, is native to New Guinea of ​​New Caledonia. The leaves are alternate, needle-like, whole or jagged, depending on the species.
There Gardènia (Gardenia) , native to the tropical and subtropical regions of Asia and Africa, includes about 250 species and is a delicate evergreen or semi-evergreen flowering shrub.

Carex: very vast genus, including 1500-2000 species belonging to the Cyperaceae family, widespread in all continents and in all environments. From the shores of the sea to the mountainous areas. The described species come.

Heliopsis, genus of 12 species of herbaceous, perennial and annual plants. The perennial species are cultivated in the borders together with the Phlox, the Salvia, the Chrysanthemum and the Delphinium.
The Heliopsis are planted in October or March, in all garden soils, preferably loose, in the sun or, in the southern regions, in partially shaded positions. In October-November the flower stems must be cut at ground level.

Heliopsis helianthoides: plant native to North America, 50-70 cm high, distance between plants 40 cm. It is a perennial, rustic species, with thin leaves, less rough than those of H.scabra, ovate or ovate-lanceolate. The flower heads, yellow, 5-6 cm wide, bloom from June to August.
Heliopsis scabra: plant native to North America, 1.2 m tall, distance between plants 40-60 cm. It is a perennial, rustic species with rough stems and leaves. The flower heads, simple, yellow, similar to those of daisies, 8 cm wide, carried by erect, branched stems, appear from June to August. Among the varieties are remembered Gigantea 1.2-1.5 m high with semi-double, deep yellow flower heads Golden Plume, 1.2 m high with double bright yellow flower heads Goldgreen-heart, 1.2 m high with double lemon-yellow flower heads, suffused with green in the center Incomparable, 1 m high with double, yellow-orange flower heads, similar to those of the Zinnias.


Reproduction: in autumn, or in spring, the tufts are divided and replanted immediately.
exposure:
flowering: from June to August


Torenia problems

While not entirely problem-free, your clown plant is still easy to maintain. Even the few problems of disease and parasites can be solved in a short time. Let's talk about what you may be facing.

Growing problems and diseases

Your biggest growing problems come from two things: time and water.

Too much direct warm sunlight, or too much heat in general, it can be a problem. Your plant may suffer from wilting during the hottest parts of the year. This also applies to suffocating humidity. Try to provide plenty of airflow around your plants, but keep them in a cooler place.

Watering it should only happen when the soil begins to dry out. Maintaining an even humidity is best. Your plant's fragile roots can be sensitive to root rot conditions if the soil is soggy for too long. To avoid this, use well-draining but rich soil.

As for the diseases, there are two that are common among bluewings growers.

The gray mold known as botrytis it is quite common. This begins with the sighting of water-soaked leaves and grayish mold spores gradually appear. You can prevent it from forming with neem oil. If it has already started, a copper fungicide spray will kill botrytis cinerea.

Powdery mildew it can also appear, particularly in more humid regions. It looks like a whitish powder on the leaves and stems of the plant. It's common, but if left untreated it can cause problems for your plant. Both botrytis treatments work for this as well. This can be prevented with good airflow around the plants.

Parasites

Two pests are common among torenia flowers: aphids, is white flies.

Both of these sucking insects will attach themselves to the underside of leaves and stems. They pierce the skin of the plant and drink the sap inside. This creates blemishes on the leaves. Too many insects can cause severe plant defoliation, even possibly death.

As with diseases, neem oil can act as a preventative here. It makes the leaves themselves look unsightly to insects. The oil also coats the larvae and eggs with a layer of oil that prevents them from breathing.

Another option is a good insecticidal soap. Not to be confused with regular washing soap, insecticidal soap is a blend of fatty acids and oil. It works in a similar way to neem oil.

Try to catch both of these parasites before they can multiply in large numbers. They reproduce very quickly and can become a real job to get rid of!


PETUNIA: BEWARE OF IRRIGATION IN SUMMER

There Petunia it's a semi-rustic plant, therefore it is very easy to grow even for the less experienced. From spring to autumn, it develops lots of leaves and flowers extremely quickly, as long as it is placed in a bright, sunny and little windy place. As a tropical plant, it loves heat and does not survive low temperatures, which is why it is often grown as an annual plant. There Petunia it cannot be grown indoors in winter, so it will perish due to the dark and cold.

It is very important to water the Petunia regularly, up to three times a week in spring and daily during the summer heat. This plant does not withstand long periods of drought and withers immediately, so it is important to always keep the soil slightly moist.

It is very important to water the Petunia regularly, up to three times a week in the spring and daily during the summer heat. This plant does not withstand long periods of drought and withers immediately, which is why it is important to always keep the soil slightly moist.The ideal substrate for its cultivation is a soil for flowering plants, permeable and rich in organic substances.

Finally, the fertilizer is very important to obtain one lush flowering and should be given to the plant once a week, from March until October, and once every two in the winter. The liquid fertilizer must contain a high potential of Iron is Potassium, to stimulate the biological processes of the plant during the intense flowering period.

COMPO Surfinie and Petunias 1 lt

Compo Sana Soil for Flowering Plants 20 liters


PUT FLOWERS ON YOUR BALCONIES!

From March to September, plants of Geraniums. Cheap, easy to grow and with a luxuriant flowering, geraniums are the favorite flowers of Italians to embellish the terrace when the summer arrives. It is interesting to know, however, that there are alternatives: equally beautiful and resistant plants, which can be purchased with a few euros best garden centers.

For example, an original plant to grow on the balcony is the Lobelia, a bushy shrub to be transplanted into balconies or hanging pots. Throughout the summer it will produce a cascade of tubular-shaped flowers in purple, light blue, white or pink depending on the variety.

There Dipladenia or Mandevilla is an evergreen climbing plant, ideal for displaying on the terrace. The fragrant bell-shaped flowers vary from red to white and the abundant blooms continue until the first cold weather arrives. The plant also resists the sultry summers in the city well, as long as it is well watered.

Another plant characterized by very branched stems is the Torenia, a herb that thanks to its drooping posture creates beautiful cascades of flowers. The leaves are small and green and the often bicolor flowers can be blue, lilac, pink or yellow. It is a plant that prefers penumbra and high soil humidity.

There Abelia Confetti It is an evergreen decorative plant, characterized by yellow-edged leaflets that take on a reddish color in winter. Throughout the summer and part of the autumn, it is filled with fragrant white tubular flowers. Thanks to its good resistance to cold and its late flowering, confetti is the perfect plant to keep the balcony alive and green all year round.

Also there Verbena it is excellent for decorating balconies, thanks to its abundant and prolonged flowering. The thin stems end with small colored flowers, in shades of lilac, red and dark blue. It is preferable to choose a hybrid variety such as temari verbena, which is more resistant to cold and more long-lived. Easy to grow, it just needs lots of light, water and a mild climate.Bidens is a perennial herbaceous plant with golden yellow flowers. Grown next to brightly colored plants such as geraniums, it creates cheerful and pleasing color compositions. Flowering is abundant, characterized by star-shaped five-petaled flowers.

The Bidens it can stand the heat but die when the temperature drops, so it is best to move it to a closed and sheltered place.


Video: Pruning and Collecting Torenia Seeds


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