Trachelospermum asiaticum, the false yellow jasmine
Native to Japan, Borneo and northern India, Trachelospermum asiaticum also graces gardens in the rest of the world. A member of the Apocynaceae family, it is prized for its fragrant summer blooms.
How to recognize the false yellow jasmine Trachelospermum asiaticum?
Trachelospermum asiaticum is a climbing or creeping perennial with a compact habit. It can reach a height of six meters and a spread of three.
The woody stems are voluble: they can wrap themselves around their support, whether a branch, a pergola or a trellis.
Foliage persists all year round. The oval leaves are two to ten centimetres long and one to five centimetres wide. Blades are shiny, dark green. But some cultivars, such as trachelospermum asiaticum 'Ogon-Nishiki or trachelospermum 'tricolor, have much more colorful foliage.
Trachelospermum asiaticum flowers in summer. The inflorescence appears at the tip of twigs or in leaf axils. It consists of five oval lobes. While the botanical variety has white flowers with a yellow heart, there are many hybrids with pink, yellow or multicolored blossoms.
The plant then gives rise to linear follicles. These fruits house the oblong seeds.
False jasmine is toxic. It causes digestive problems if swallowed, and skin irritation on contact.
Our maintenance tips
Trachelospermum asiaticum are easy-care plants. Drought-resistant, they nevertheless need regular watering in pots and during the first few years.
Watering
Before watering, make sure the substrate is two or three centimetres dry by dipping your fingers into the soil. If this is the case, moisten the root ball with non-calcareous water at room temperature.
To avoid drowning the roots, don't leave stagnant water in the dish.
Repotting
Your Trachelospermum asiaticum is developing deep roots. Choose a pierced pot high enough (around 60 centimetres) to accommodate them.
Prepare a rich, light substrate. You can use commercially available potting soil for Mediterranean plants, or mix garden soil (2/3) with heather soil (1/3).
Pour the potting soil into your planter. If you have provided a support (trellis or stake), install it in your pot.
Then plant your Trachelospermum asiaticum. Fill the pot with potting soil. Make sure you stop a few centimetres short of the rim to avoid water overflowing when watering.
Water generously to encourage rooting, using water at room temperature.
The plant clings naturally to its support. But you'll need to give it a little help at the start. Wrap the branches around your pergola or trellis.
Fertilization
You can stimulate the growth of your plant during its growth phase, in spring and summer, with fertilizer.
Bury a handful of compost at the foot of your Trachelospermum asiaticum.
You can stimulate the development of your plant during its growth phase, in spring and summer, with fertilizer.
Apply fertilizer for flowering plants or Mediterranean plants.
Prune
Cut back dry, damaged branches using clean, sharp pruning shears.
Trachelospermum asiaticum have sap that can cause skin irritation. Remember to wear gloves for protection!
Plantation
Once the last spring frosts have passed, you can plant.
Soak the rootball of your Trachelospermum asiaticum in water at room temperature.
Find a sunny spot sheltered from the wind. Dig a planting hole as wide as it is high. Place gravel and compost at the bottom to optimize drainage.
Plant your Trachelospermum asiaticum and fill in with a mixture of universal potting soil, garden soil and compost. Form a watering basin and water copiously to encourage rooting.
Planning to climb your plant on a pergola or trellis? Wrap the first branches around the support to show them the way.
Cutting
Cutting is carried out during the strong growth phase, generally in spring and early summer.
Take a branch about fifteen centimeters long. The stem should be semi-jointed, i.e. Still flexible and not yet woody. Cut below the node closest to the mother stem.
Remove the leaves at the base, keeping only the upper pairs.
Remove the leaves at the base, keeping only the upper pairs.
Pour a mixture of potting soil and sand into a pot whose hole has been plugged with a pebble. Push half the stem of your cutting into the center without watering.
Place the pot in a mini greenhouse; if you don't have one, you can cover the plant with a translucent bag or a cut bottle. Place your graft in a bright spot, without direct sunlight.
Every day, aerate for a few minutes to drain off condensation and mist.
Every day, aerate for a few minutes to drain off condensation and mist.
Disease / Threat
Information
Family | Apocynaceae - Apocynaceae |
Type | Trachelospermum - Trachelospermum |
Species | Trachelospermum asiaticum - Trachelospermum asiaticum |
Lifecycle | Perennial |
Foliage | Evergreen |
Exposures | |
Substrats | |
Planting methods |
Open ground In pots In tubs |
Categories | |
Tags |
Beginner Flowery Toxic |
Origins |
South Asia Southeast Asia |
Hardiness (USDA) | 8a |
Leaf color |
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Flower colors |
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Fruit color |
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