Also known as Blue Angel Hosta · Plantain Lily · Siebold’s Hosta
Siebold's Plantain Lily (Hosta sieboldiana) is a shade-loving perennial admired for its large, textured, blue-green to gray-green leaves. It's a classic for shady gardens
At-a-glance light, water, soil, and growing conditions from plant data
Partial Shade
50% intensity
Prefers dappled shade or morning sun; avoid harsh afternoon sun.
Consistent Moisture
75% intensity
Keep soil evenly moist, but not soggy.
Well-drained, humus-rich
50% intensity
Hardy
25% intensity
Thrives in cool to moderate temperatures; tolerates light frost.
Moderate
50% intensity
Feed in spring and mid-summer with balanced fertilizer.
Safety information from plant toxicity data
| Attribute | Value |
|---|---|
| Toxic for humans | No 0/5 intensity |
| Toxic for pets | No 0/5 intensity |
Contains saponins, which can cause gastrointestinal upset (vomiting, diarrhea) in pets if ingested.
Key traits and growing stats from plant data
Watering, pruning, propagation, and repotting details from plant data
Siebold's Plantain Lily prefers consistently moist soil. Water deeply when the top inch of soil feels dry to the touch, especially during hot, dry periods. Avoid waterlogged conditions, which can lead to root rot.
Regular watering promotes lush foliage and healthy growth throughout the season.
Remove any dead, damaged, or diseased leaves as they appear to maintain plant health and appearance. In late fall or early spring, cut back all foliage to the ground.
This helps prevent overwintering pests and diseases and tidies up the garden bed for the new growing season.
Hosta sieboldiana is primarily propagated by division. In early spring or fall, carefully dig up a mature clump and divide it into smaller sections, ensuring each division has roots and at least one growth bud.
Replant divisions immediately into prepared soil.
For potted Siebold's Plantain Lily, repot every 2-3 years or when the plant becomes root-bound. Choose a pot that is slightly larger than the current one. Repot in early spring before new growth begins.
Refresh the potting mix with a good quality, well-draining compost.
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Monthly activity intensity for bloom and fruit across both hemispheres.
Flowering & fruiting calendar
Flowering & fruiting calendar
Photos of Siebold's Plantain Lily (Hosta sieboldiana)
Where Siebold's Plantain Lily (Hosta sieboldiana) is found
Density
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Common names and botanical synonyms
Botanical classification
| Rank | Name |
|---|---|
| Kingdom | Plantae |
| Division | Tracheophyta |
| Class | Liliopsida |
| Order | Asparagales |
| Family | Asparagaceae |
| Genus | Hosta |
| Species | Hosta sieboldiana |
Similar in genus Hosta
Answers based on plant encyclopedia data
