Also known as Maharukh · White Bean · White Siris
Ferntop Ash (Ailanthus triphysa) is a fast-growing rainforest tree native to Australia, known for its tall, straight trunk and attractive foliage, often used for timber.
At-a-glance light, water, soil, and growing conditions from plant data
Full Sun
100% intensity
Prefers full sun exposure for optimal growth and vigor.
Moderate
50% intensity
Keep soil consistently moist for young plants, allow slight drying for mature trees.
Loam, Sandy loam, Clay loam
50% intensity
Moderate
50% intensity
Thrives in temperate climates; can tolerate some frost once established.
Low
25% intensity
Requires minimal fertilization; a balanced slow-release in spring is sufficient for young trees.
Key traits and growing stats from plant data
Watering, pruning, propagation, and repotting details from plant data
Water regularly during the establishment phase, keeping the soil consistently moist but not waterlogged.
Once mature, Ailanthus triphysa is quite drought-tolerant and requires less frequent watering, especially in regions with adequate rainfall. Allow the top layer of soil to dry out slightly between waterings.
Pruning is typically minimal and mainly for shaping, removing dead, damaged, or crossing branches, and improving air circulation. Prune during the dormant season to encourage vigorous new growth in spring.
Early pruning can help establish a strong, desirable tree structure.
Propagation is primarily achieved through seeds, which require stratification to break dormancy. Sow seeds in a well-draining mix and maintain consistent moisture and warmth.
Cuttings can also be attempted, though success rates may vary. Seedlings are often more vigorous.
Repotting is generally only necessary for young trees or saplings grown in containers. Choose a pot that is slightly larger than the current one and use a well-draining potting mix.
Repot in spring before new growth begins. Mature trees are best left undisturbed in their final location.
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Monthly activity intensity for bloom and fruit across both hemispheres.
Flowering & fruiting calendar
Flowering & fruiting calendar
Photos of Ferntop Ash (Ailanthus triphysa)
Common names and botanical synonyms
Botanical classification
| Rank | Name |
|---|---|
| Kingdom | Plantae |
| Division | Tracheophyta |
| Class | Magnoliopsida |
| Order | Sapindales |
| Family | Simaroubaceae |
| Genus | Ailanthus |
| Species | Ailanthus triphysa |
Similar in genus Ailanthus
Answers based on plant encyclopedia data
