Also known as Forest Poppy · Forest-Poppy · Japanese Woodland Poppy
Hylomecon japonica is a shade-loving perennial with bright yellow flowers that blooms in spring. Native to East Asia, it thrives in moist, well-drained soils.
At-a-glance light, water, soil, and growing conditions from plant data
Partial shade
50% intensity
Prefers dappled shade or partial shade. Protect from harsh afternoon sun, which can scorch its leaves.
Keep moist
75% intensity
Maintain consistent soil moisture without waterlogging. Allow the top inch to dry before watering.
Well-drained
50% intensity
Cool to moderate
50% intensity
Thrives in cool to moderate temperatures, ideally between 15-22°C. Protect from extreme heat and frost.
Outdoor
50% intensity
Light feeding
25% intensity
Feed with a balanced liquid fertilizer diluted to half strength during the growing season (spring/summer).
Key traits and growing stats from plant data
Watering, pruning, propagation, and repotting details from plant data
Keep the soil consistently moist, especially during the growing season. Avoid waterlogging, as this can lead to root rot. Water thoroughly when the top inch of soil begins to feel dry.
Reduce watering in winter when the plant is dormant, allowing the soil to dry out slightly between waterings.
Prune to maintain shape and remove any dead, damaged, or diseased stems. Light pruning can be done after flowering to encourage a tidier appearance.
Heavy pruning is generally not required; focus on formative pruning when the plant is young to establish a good structure.
Hylomecon japonica is easily propagated by division in early spring or autumn. Carefully separate clumps of roots and replant them immediately in well-draining soil.
Stem cuttings can also be taken in late spring or early summer and rooted in moist soil or water.
Repot every 2-3 years, or when the plant becomes root-bound. The best time to repot is in early spring before new growth begins. Use a well-draining potting mix.
Ensure the new pot is only slightly larger than the current one to avoid excess moisture retention.
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Monthly activity intensity for bloom and fruit across both hemispheres.
Flowering & fruiting calendar
Flowering & fruiting calendar
Photos of Hylomecon Japonica (Hylomecon japonica)
Where Hylomecon Japonica (Hylomecon japonica) is found
Density
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Common names and botanical synonyms
Botanical classification
| Rank | Name |
|---|---|
| Kingdom | Plantae |
| Division | Tracheophyta |
| Class | Magnoliopsida |
| Order | Ranunculales |
| Family | Papaveraceae |
| Genus | Hylomecon |
| Species | Hylomecon japonica |
Similar in genus Hylomecon
Answers based on plant encyclopedia data
