Conandron ramondioides

Conandron ramondioides is a small perennial in the Gesneriaceae family. Its native range spans parts of temperate eastern Asia. Kew lists northern Vietnam, eastern China, Japan, and Taiwan. In Japan, it grows on wet mountain cliffs. Chinese habitats include rocks beside streams and cliffs within forests. These sites lie at elevations of 1,970–4,265 feet [600–1,300 metres]. Its wild settings help explain its need for cool, moist growing conditions.

Plants reach about 1 foot [0.3 metres] in height. They spread about 0.7 feet [0.2 metres] across. This small size suits a sheltered rock garden crevice. Plants For A Future also lists beds and sites beside east- or west-facing walls. The flowering season runs from July to August. Each flower has both male and female organs. The supplied species evidence gives no flower colour or fruit details. It also gives no detailed account of leaves or stems.

Choose a shaded spot with cool soil and good drainage. Light woodland shade suits the plant. It prefers moist soil with plenty of humus. Sandy, loamy, and clay soils can all support growth. Drainage matters across these soil types. The listed pH range includes very acid through neutral soils. The cultivation notes favour an acidic mix for rock garden sites. A shaded crevice can provide the setting described by the source.

Plants For A Future lists USDA hardiness zones 8–11. It also warns that outdoor plants need protection in Britain. An alpine house offers one way to provide shelter. A glass cover may give enough protection for outdoor plants. Its separate reference to UK zone 9 is not an RHS hardiness rating. Propagation uses seed or spring division. Sow seed on the surface when ripe, or in spring. Keep seed pots from drying out. The source calls for extra winter light for seedlings. Grow young plants under glass through at least their first winter. Move them outside after the last expected frost.

The leaves have a recorded use as cooked famine food. This is an emergency food use, not a strong culinary recommendation. Plants For A Future reports no known hazards. That statement does not establish safety for people or pets. It lists no known medicinal or other practical uses. The source does not flag the plant as weedy. The supplied evidence names no pests or diseases.