Ailanthus altissima Seeds | Tree of Heaven
LATIN NAME: Ailanthus altissima
COMMON NAME: Tree of Heaven
Plant Profile
Ailanthus altissima, commonly known as Tree of Heaven, is a species, native to traditional mulberry silk production, with a long record in gardens. The blooms are worked steadily by bees for as long as they are open. Plants that offer this much while asking this little are rare enough to treasure.
Science & Biotechnology
As part of the Ailanthus group, Ailanthus altissima contributes to research on plant classification and adaptation, while nurseries and gardeners continue to trial it for cultivation. It has also become a major focus of invasive-species research in recent years as primary host plant for spotted lanternfly, an invasive pest insect whose North American spread is closely tied to distribution of this tree. Contemporary seed practice means a grower can raise it confidently with standard techniques.
Uses & Benefits
Gardeners value Tree of Heaven for its ornamental character, and the plant also fits naturally into herb, vegetable and cutting gardens. Historically, tree of heaven’s leaves were preferred food source for ailanthus silkmoth, once cultivated for a minor silk industry in parts of Asia and Europe as an alternative to traditional mulberry silk production. Once settled, it thrives on neglect more than on fussing.
The tree of heaven is a famously tough urban tree; its bark, Chun Pi, is a classical Chinese astringent herb, though its invasive vigor means it is planted with care.
Growing from Seed
Tree of Heaven is one of those generous plants that come along well from seed. Fresh seed needs no special pretreatment; sow it into a loose, well-drained mix and keep it lightly moist in a warm, bright position. Given how enthusiastically this species self-seeds and spreads once established, it is worth growing with real intention and awareness of local invasive-species regulations rather than as a casual ornamental choice. Use a fine, free-draining seed compost, scatter the seed evenly, cover it lightly and hold it just moist in good light. Pot the young plants on as they grow, harden them off gradually, and plant them into their final positions when sturdy.
Our Take
Tree of Heaven has real presence in the garden without demanding much in return. Minor errors in timing or watering rarely cost the grower the crop.
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