Hylomecon japonica

Hylomecon japonica

Native to:
China | Japan

📍 View on iNaturalist →

Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Papaveraceae
Genus:
Hylomecon
Species:
Hylomecon japonica

Growth Characteristics

Growth Habit:
Forb/herb
Height:
30 cm
Drought Tolerance:
Low
Bloom Months:
apr,may
Bloom Colors:
yellow

Propagation & Germination

Stratification:
Cold/moist stratification required — 60–90 days
Germination Time:
30–60 days
Notes:
Seeds benefit from cold stratification for 2-3 months before sowing.

Source: deepseek-v4-flash

ORGHPS Germination Guide: Sow immediately, Either the viability of these seeds is short or the species propagates best with fresh seed. Stored seed might be coaxed into germination with temperature cycling and patience. Sow at 20°C for 6 weeks, then place @ 4°C for 6 weeks, then slowly raise temperature to 10°C for 6 weeks. If there is no germination, repeat the cycle. Germination is improved by using GA3. * Hydrophilic, does not readily set seed,

Source: Ontario Rock Garden & Hardy Plant Society