Water
Markhamia lutea prefers consistently moist soil but dislikes waterlogging. Water thoroughly when the top 2-3 cm of soil feels dry. Reduce watering slightly during cooler, dormant periods.
Ensure good drainage to prevent root rot.
Also known as Nile Trumpet · Nile Tulip · Siala Tree
Siala (Markhamia lutea) is a fast-growing tropical tree native to Africa, known for its bright yellow, trumpet-shaped flowers and usefulness in reforestation and agrofore
At-a-glance light, water, soil, and growing conditions from plant data
Full Sun
100% intensity
Prefers at least six hours of direct sunlight daily for optimal growth and flowering.
Consistent Moisture
50% intensity
Keep soil evenly moist but not waterlogged, allowing the top layer to dry slightly between waterings.
Well-drained
50% intensity
Warm
75% intensity
Thrives in warm temperatures, ideally between 20-30°C. Protect from frost and temperatures below 10°C.
Regular Feeding
50% intensity
Feed with a balanced fertilizer during the growing season; reduce or stop in winter.
Safety information from plant toxicity data
| Attribute | Value |
|---|---|
| Toxic for humans | No 0/5 intensity |
| Toxic for pets | No 0/5 intensity |
| Edible | No |
None
Key traits and growing stats from plant data
Watering, pruning, propagation, and repotting details from plant data
Markhamia lutea prefers consistently moist soil but dislikes waterlogging. Water thoroughly when the top 2-3 cm of soil feels dry. Reduce watering slightly during cooler, dormant periods.
Ensure good drainage to prevent root rot.
Prune to shape the tree, remove dead or damaged branches, and encourage bushier growth. Light pruning can be done any time, but heavy pruning is best done in late winter or early spring before new growth emerges.
This promotes flowering.
Propagate Markhamia lutea from seeds or stem cuttings. Seeds can be sown in a well-draining medium after stratification.
Stem cuttings, taken from semi-hardwood, should be treated with rooting hormone and planted in a moist medium.
Repot young plants annually or when root-bound, typically in spring. Mature trees generally do not require frequent repotting. Use a well-draining potting mix.
Select a pot that is only slightly larger than the current one.
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Monthly activity intensity for bloom and fruit across both hemispheres.
Flowering & fruiting calendar
Flowering & fruiting calendar
Photos of Siala (Markhamia lutea)
Where Siala (Markhamia lutea) is found

Density
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Common names and botanical synonyms
Botanical classification
| Rank | Name |
|---|---|
| Kingdom | Plantae |
| Division | Tracheophyta |
| Class | Magnoliopsida |
| Order | Lamiales |
| Family | Bignoniaceae |
| Genus | Markhamia |
| Species | Markhamia lutea |
Similar in genus Markhamia
Answers based on plant encyclopedia data