Tabernaemontana: How to Grow & Care Crape Jasmine Plants

Tabernaemontana (Crape Jasmine)

Crape Jasmine (Tabernaemontana ): How to Grow & Care

Tabernaemontana Divaricata (Crape Jasmine)

Pinwheel flower, crape jasmine, East India rosebay, and Nero's crown are all popular names for Tabernaemontana divaricata, an evergreen shrub or small tree native to South Asia, Southeast Asia, and China. It is planted as a house/glasshouse plant in zones where it is not hardy because of its lovely flowers and foliage. When broken, the stem emits a milky latex, hence the name "milk flower."

Crepe jasmine is a lovely shrub that ought to be used more often. The profuse flowers are formed like pinwheels, earning the plant another popular name: pinwheel flower. Crepe jasmine, with its white blossoms that shimmer in the moonlight all year, is ideal for the gardener looking to create a wow-worthy twilight garden.

Scincetific Name: Tabernaemontana Divaricata



Species: T. divaricata

Descriptions of Crape Jasmine

The plant is dichotomously branched and grows to a height of 1.5–1.8 metres (5–6 feet). The huge lustrous leaves are around 15 cm long and 5 cm wide and are deep green. Small clusters of waxy flowers can be seen on the stem tips. The single flower looks like "pinwheel" shape found in other Apocynaceae genera, such as Vinca and Nerium. Both single-flowered and double-flowered varieties are grown, with white flowers on both. Flowers blooms irregularly throughout the year, but the plant blooms in the spring. The flowers have a very pleasant scent. The plant contains more than 66 alkaloids.

Crape Jasmine Plants

Crepe jasmine is an evergreen shrub that grows to be somewhat dense and rounded. The swirling white blossoms are most noticeable in the summer, but they shine out against the dark green, glossy evergreen foliage at any time of year. In commerce, there is a double-flowered cultivar known as' Flore Plena. Some gardeners say it has a mild scent in the morning and evening, while others say it has no scent at all.

These plants flourish in USDA Hardiness Zones 9B to 11, making them a good choice for Central and South Florida gardening. Mature shrubs attain a height of 6 to 10 feet and a width of 3 to 6 feet. They will be killed by a strong freeze, but they will recover quickly.

Planting and Care

Crepe jasmine (Tabernaemontana divaricata) can be cultivated in full sun to partial shade, but it looks best in filtered shade. A thickly growing shrub that blooms in the shade is certainly something to appreciate. This plant works well as a shrubbery border, as a specimen plant, or as a foundation planting against a windowless wall because of its rounded shape (it will grow large enough to obscure a window).

If you want to keep your tree in a more compact shape, you'll need to prune it. These plants prefer moist, well-drained soil, but once established, they may survive with little water. Plants thrive in acidic soil, but when planted in more alkaline soils, fertiliser may be required for optimal results. Given this, it's better to keep crepe jasmine away from concrete, as the soil around it is typically more alkaline.

Crepe jasmine's long-term health is unaffected by insects, illnesses, or nematodes, so you may anticipate enjoying this shrub for many years.

Catharanthine, coronaridine, dregamine, ibogamine, tabersonine, voacangine, voacamine, and voacristine are among the alkaloids produced by the species. In small concentrations, ibogaine, which is claimed to occur in numerous Tabernaemontana species, and 10,11-Demethoxychippiine, a rare chippiine-dippinine combination, are detected in stem bark extract of this plant.

Crape Jasmine flower


The stems and roots of this plant contain powerful acetylcholinestearase inhibitors. With an IC50 of 7.001.99 M, 3'-R/S-hydroxyvoacamine isolated from stem extracts functions as a non-competitive inhibitor of AChE. When compared to galanthamine, the bisindole alkaloids 19,20-dihydrotabernamine and 19,20-dihydroervahanine A have a stronger inhibitory effect on acetylcholinesterase.

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