Silk cottontree
Cochlospermum vitifolium · Cochlospermaceae
The gardener's calendar
In autumn, ease off feeding and take the chance to clean up around silk cottontree and prepare for winter.
ID card
- Common name
- Golden Silk Tree, Silk Wood
- Family
- Cochlospermaceae
- Foliage
- Deciduous
- Flowering
- Spring to summer (April-June)
- Adult size
- 6 to 12 m in height
- Growth rate
- Fast
- Hardiness
- Tropical and subtropical (freezes below 10°C)
- Origin
- Central America and Mexico
Care
Sunlight
Place the tree in full sun to promote abundant flowering and robust wood. It tolerates hot, sunny areas well without fear of direct rays. Partial shade is possible in very hot regions, but flowering will be less spectacular.
Watering
Water regularly during active growth and flowering, keeping the soil moist but well-drained. Reduce watering in winter or during natural dry periods. Avoid standing water that promotes root rot.
Soil
Prefer well-draining soil that is slightly rich in organic matter. The tree adapts to different soil types, from sandy to loamy, provided drainage is excellent. A neutral to slightly acidic pH is ideal.
Fertilizing
Apply balanced fertilizer in spring when growth resumes. A second application can be made in early summer if growth is vigorous. Limit nitrogen to promote flowering rather than foliage.
Pruning and shaping
Prune lightly after flowering to balance the silhouette and remove dead or poorly oriented branches. The tree tolerates pruning well, which promotes a more compact structure. Avoid severe pruning that would delay the following year's flowering.
Diseases and pests
The tree is generally robust in its tropical native environment. In cultivation, watch for aphid or spider mite attacks, especially during prolonged drought. Stagnant excess moisture can promote fungal diseases; maintain good air circulation around the foliage.
Did you know?
Cochlospermum vitifolium owes its nickname of "Golden Silk Tree" to its magnificent golden-yellow flowers that illuminate the landscape in spring. In Central America, this tree holds strong cultural importance and its yellow flowers are associated with festive celebrations. Its wood, once used for making small objects and as a fiber source, makes it as much a utilitarian tree as an ornamental one in its native regions.
Where to buy it
Best planted in autumn so the roots settle in before summer, or in early spring once the frost has passed. Pick a plant with healthy foliage and roots that are not exposed. Best time: March, October, November.
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Tips generated and checked by Viridia — adapt them to your local climate.