White siris (Ailanthus integrifolia) is a large, fast-growing evergreen tree native to Southeast Asia, prized for its attractive foliage and useful timber.
At-a-glance light, water, soil, and growing conditions from plant data
Full Sun
100% intensity
Prefers full sun for best growth and flowering.
Moderate
50% intensity
Allow soil to dry slightly between waterings once established.
well-drained
50% intensity
Warm
75% intensity
Thrives in warm to hot climates, intolerant of frost.
Moderate
50% intensity
Feed in spring with a balanced fertilizer.
Safety information from plant toxicity data
| Attribute | Value |
|---|---|
| Toxic for humans | No 0/5 intensity |
| Toxic for pets | No 0/5 intensity |
Key traits and growing stats from plant data
Watering, pruning, propagation, and repotting details from plant data
Water regularly, especially when young and establishing. Allow the soil to dry slightly between waterings.
Once established, it is relatively drought-tolerant but benefits from occasional deep watering during prolonged dry periods to maintain optimal health and vigor.
Prune in late winter or early spring before new growth begins. Remove dead, damaged, or crossing branches to maintain a strong structure and desired shape.
Light pruning can be done after flowering to manage size and encourage bushier growth.
Propagate by seeds, sown in spring, or by semi-hardwood cuttings taken in summer. Seeds require stratification in cool conditions for a period before sowing.
Cuttings should be treated with rooting hormone and placed in a well-draining medium.
Repot young plants every 1-2 years in spring before new growth starts. Use a well-draining potting mix. Mature trees generally do not require repotting and are best left in their permanent locations.
Ensure adequate space for root development.
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Monthly activity intensity for bloom and fruit across both hemispheres.
Flowering & fruiting calendar
Flowering & fruiting calendar
Photos of White Siris (Ailanthus integrifolia)
Common names and botanical synonyms
Botanical classification
| Rank | Name |
|---|---|
| Kingdom | Plantae |
| Division | Tracheophyta |
| Class | Magnoliopsida |
| Order | Sapindales |
| Family | Simaroubaceae |
| Genus | Ailanthus |
| Species | Ailanthus integrifolia |
Similar in genus Ailanthus
Answers based on plant encyclopedia data
