Saraca dives Seeds | Asoka Tree

Asoka Tree (Saraca dives) with dense rounded heads of orange-red flowers and flushed pink new leaves — Asoka Tree (*Saraca dives*): Fabaceae, the temple tree whose young leaves hang pink before they harden green.

LATIN NAME: Saraca dives

COMMON NAME: Asoka Tree

Plant Profile

The Asoka Tree is one of the sacred trees of Asia, an evergreen legume of ten to fifteen metres from the warm forests of southern China and Indochina, grown for centuries in temple courts for its dense, rounded heads of orange-red, faintly fragrant flowers and for its strangest habit: every flush of new leaves hangs limp and pink-red from the branch like rows of handkerchiefs before stiffening into dark green.

The flowers sit in tight corymbs straight off the older branches, deep orange aging to red, and the combination of flush and flower can cover the tree in colour several times a year. Buddhist tradition attaches the species, and its Indian relative Saraca asoca, to the birth of the Buddha, and temple plantings across the region keep the association alive. In gardens it holds a neat dome without pruning.

Science & Biotechnology

The hanging crimson new growth is a classic case in plant ecology: the delayed-greening hypothesis explains soft, pigment-loaded young leaves as a defence, sacrificing early photosynthesis to avoid the cost of replacing tender tissue chewed by insects, and Saraca’s dramatic flushes appear in the textbooks of the idea. Its biology follows the caesalpinioid legumes: showy flowers, flat pods, and large seeds that germinate without dormancy and cannot be stored dry.

Taxonomically the Chinese and Southeast Asian tree is Saraca dives, distinct from the true Indian ashoka of Ayurvedic bark medicine, and the two names are crossed so often in the trade that buyers should confirm which tree they are actually getting.

Uses & Benefits

As a garden tree it brings three shows, flower, flush and dense evergreen crown, to frost-free gardens, parks and temple grounds, and it takes a shaded or sunny position with equal calm. Its sacred standing makes it a fixture of cultural plantings wherever the diaspora gardens have gone. Mature trees cast a comfortable medium shade suited to courtyard sitting, and the flush display repeats several times a year in good conditions.

The Indian cousin supplies the famous ashoka bark of Ayurvedic women’s medicine; the Chinese tree’s own bark has regional folk use, though the pharmacopoeial trade belongs to the other species.

Growing from Seed

The big seeds are the straightforward part: no scarification, no stratification, just urgency. Collect from splitting pods, clean the coats, and sow immediately, two to three centimetres deep in a rich, free-draining compost at twenty-five degrees or above. Germination follows within one to two weeks, and a seed left on the shelf for a month is usually a seed lost.

Seedlings want warm shade at first and grow steadily into handsome small trees. Keep them above fifteen degrees year-round, water generously in growth, and give the young tree shelter from wind, which tatters the big leaflets. Feed little, since the species dislikes salt build-up in pots, and expect the first flowers inside four to six years.

Our Take

A temple tree you can raise from a pod: fresh seed, warmth, and patience with the tender years. The pink handkerchief flushes alone are worth the bench space.

Tree Seeds