About
Dimocarpus longan is lychee's slightly less famous cousin: translucent aril around a jet-black seed that literally looks like a dragon's eye if you squint poetically. Evergreen tropical tree with glossy compound leaves and panicles of tiny flowers that become clustered fruit. Marginal except in warm microclimates; young flushes hate cold snaps. Full sun for commercial-level fruiting; afternoon shade acceptable in brutal heat. Deep, fertile, well-drained soil with steady moisture in fruiting season. Mulch and wind protection for establishment. Air-layering and grafting for true-to-type cultivars. Seeds grow but produce variable, long-juvenile offspring. When skin turns tan/leathery and fruit separates cleanly — overripe loses snap.
Permaculture Functions
- Edible: Dimocarpus longan arils stay glassy-sweet around a jet-black seed -- eat fresh off the stem when skin leathers and aroma peaks; overripe fruit loses snap and ferments within days in tropical heat.
- Shade Provider: Dense evergreen crown filters sun for understory coffee and vanilla in frost-free sites -- young flushes still burn below 28°F (around -2°C), so microclimate planning is not optional.
- Wildlife Attractor: Panicles of tan fruit draw starlings and fruit bats the week humans blink -- net entire canopies or harvest slightly early for drying if wildlife tithe is not in your budget.
Companion Planting
Threats & Pressure