Rakkyo

Allium chinense

Native to:
China, Hainan

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Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Amaryllidaceae
Genus:
Allium
Species:
Allium chinense
USDA Symbol:
ALCH5

Growth Characteristics

Height:
50 cm
Light Requirements:
Full Sun
Drought Tolerance:
Medium
Bloom Months:
jun,jul,aug
Bloom Colors:
white, pink

Garden & Ecology Notes

Wildlife Value:
bees, butterflies
Deer Resistant:
Yes
Fragrant:
Yes

Soil Requirements

Soil Type:
rich, well-drained loamy soil
pH:
5.5 - 7.5 (slightly acidic to neutral)
Drainage:
excellent drainage required
Moisture:
consistently moist
Notes:
native to regions with seasonal rainfall

Propagation & Germination

Stratification:
Cold/moist stratification required — 30–60 days
Germination Time:
14–30 days
Notes:
Germinates best at cool temperatures around 15-20°C. Light may improve germination rates.

ORGHPS Germination Guide: Seed viability < 1 year for cold germinators except for A. cristophii

Source: Ontario Rock Garden & Hardy Plant Society