Astilbe longicarpa aka Astilbe Longicarpa

Astilbe longicarpa belongs to the saxifrage family, Saxifragaceae. It is a perennial: it lives for more than two years. Kew lists Taiwan as its native range. It grows in a temperate climate. Plants For A Future places it at low to middle elevations. The RHS confirms it is not native to Britain or Ireland. These sources give few facts about its wild habitat.

Plants For A Future gives a height of about 3.3 feet [1 metre]. The sources do not say how wide mature plants grow. They do not describe this species’ leaves or stems. The RHS describes leaves and flowers for the genus only. Those traits cannot show just how this species looks. These sources tell us more about its size than its form.

The plant blooms from July through October. Seeds ripen from August through November. This means seeds ripen while the plant is still in bloom. Each flower has both male and female organs. Insects pollinate the flowers. The sources do not state this species’ flower colour. Nor do they describe the shape of its fruit. Plants For A Future lists the seedpods as edible. It says people eat the fruiting parts fresh. It gives no more details on how to prepare or use them.

The species account supports light shade in woods for garden use. It says the plant prefers moist soil. Sand, loam, and clay soils all suit it. The stated soil pH range runs from mildly acid to neutral to mildly alkaline. A woodland garden with dappled shade meets these stated needs. Plants For A Future warns that little is known about this species. Its other notes on how to grow it concern the genus. They do not set a firm cold limit for this species. We thus cannot be sure it will live through British winters.

Plants For A Future gives its edible use a low rating. It lists no known uses in medicine and no known hazards. This does not prove the plant is safe for people or pets. The source also lists a use as a dynamic accumulator. It gives no details of that use for this species. It does not flag the plant as a weed. The sources name no pests or diseases specific to this species.