Grewia mollis
| Dankh (Grewia mollis) | |
|---|---|
| Scientific name | Grewia mollis |
| Genus | Grewia |
| Family | Malvaceae |
| Order | Malvales |
| Native range | Tropical Africa, Yemen and Oman |
| Habit | Deciduous, often multistemmed shrub or small tree |
| Mature size | Up to 10.5 m (source-reported) |
Grewia mollis is a deciduous, often multistemmed shrub or small tree native to tropical Africa, Yemen and Oman.[1] It is a useful multipurpose species for a warm collection where a seasonal, manageable woody plant is wanted. The common name dankh is reported regionally; common-name usage should be checked against local language and provenance.
Description[edit | edit source]
Grewia mollis is described as slow-growing and deciduous, with a shrub or small-tree habit that may reach 10.5 m. Established plants can be managed by coppicing or pollarding, and the species is often multistemmed.[2] The broad native range crosses tropical African and southern Arabian environments, so growth rhythm and water demand should be expected to vary with local seasonality.[1]
Cultivation[edit | edit source]
Soil and water[edit | edit source]
A practical starting point is a freely draining root zone with regular moisture during active growth and less irrigation as leaf fall begins. This is a cautious cultivation inference from the species' deciduous habit and seasonal native range, not a measured irrigation schedule.[1][2] Avoid keeping a container permanently saturated, particularly while the plant is leafless.
Sun and humidity[edit | edit source]
Native records span tropical Africa, Yemen and Oman, where rainfall and seasonal dryness differ. A conservative cultivation inference is to establish young plants in bright light with good airflow, then acclimate them to stronger sun as foliage and water demand allow; a single tested shade limit should not be assumed.[1]
Seasonal changes[edit | edit source]
The plant is deciduous, so irrigation should be reduced during a leafless interval and increased again as active growth resumes. Its reported response to coppicing and pollarding makes seasonal pruning a practical way to control a multistemmed specimen once it is established.[2]
Propagation[edit | edit source]
The species account describes germination and early growth as usually quite quick and recommends heel cuttings when vegetative propagation is attempted.[2] Treat results as variable: no germination percentage, seed pretreatment, rooting percentage, or propagation calendar is established by that account. Keep seed and cutting provenance attached to each batch, especially when plants are being compared across climates.
Flowering, fruiting, and harvest[edit | edit source]
Fruit is included in the documented food uses of the species, but a flowering calendar, pollination requirement, bearing age, and reliable maturity marker are not supported here.[2] Harvest claims should therefore remain tied to positively identified plants and local observation rather than to a fixed schedule. Bark-gum research does not provide a substitute for fruit-quality or fresh-fruit safety evidence.[3][4]
Fruit and uses[edit | edit source]
Grewia mollis is recorded as a multipurpose tree: its fruit has food uses, while fibre and timber are separate material uses.[2] The bark is also studied as a source of gum. An original laboratory study examined aqueous extraction, composition, yield, and viscosity of gum from bark powder; that processing work does not establish medicinal efficacy, toxicity limits, or the safety of eating fresh fruit.[3] A separate review provides literature context for the polymer and gum, but it is not an original cultivation or safety study.[4]