Also known as Giant-Bellflower · Three-Leaf Ladybell · Three-Leaved Lady Bell
Adenophora triphylla, the Japanese Lady Bell, is a charming perennial with delicate, bell-shaped blue-purple flowers, ideal for woodland gardens and borders. It thrives i
At-a-glance light, water, soil, and growing conditions from plant data
Partial Shade to Full Sun
50% intensity
Prefers morning sun or dappled shade, especially in hotter climates.
Consistent Moisture
50% intensity
Avoid waterlogged conditions.
Well-drained, Humus-rich
50% intensity
Average
50% intensity
Hardy in USDA zones 4-9. Prefers cooler temperatures during the growing season.
Outdoor
50% intensity
Light Feeding
25% intensity
Apply balanced fertilizer in spring; avoid over-fertilizing.
Safety information from plant toxicity data
| Attribute | Value |
|---|---|
| Toxic for humans | No 0/5 intensity |
| Toxic for pets | No 0/5 intensity |
Non-toxic
Key traits and growing stats from plant data
Watering, pruning, propagation, and repotting details from plant data
Keep the soil consistently moist but not waterlogged, especially during the growing season. Water when the top inch of soil feels dry.
Reduce watering in fall and winter, allowing the soil to dry out slightly between waterings to prevent root rot.
Deadhead spent flowers to encourage reblooming and improve appearance. In late winter or early spring, prune back any dead or weak stems to the ground.
Remove any diseased or damaged foliage as it appears to maintain plant health and vigor.
Easily propagated from seed sown in autumn or early spring. Division of established clumps in early spring is also effective. Seeds may require a period of cold stratification.
Cuttings can be taken in late spring or early summer.
Repot young plants annually or every other year in early spring. Mature plants can be repotted every 2-3 years or when they become root-bound.
Use a well-draining potting mix and a pot that is only slightly larger than the current root ball.
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Monthly activity intensity for bloom and fruit across both hemispheres.
Flowering & fruiting calendar
Flowering & fruiting calendar
Photos of Japanese Lady Bell (Adenophora triphylla)
Common names and botanical synonyms
Botanical classification
| Rank | Name |
|---|---|
| Kingdom | Plantae |
| Division | Tracheophyta |
| Class | Magnoliopsida |
| Order | Asterales |
| Family | Campanulaceae |
| Genus | Adenophora |
| Species | Adenophora triphylla |
Similar in genus Adenophora
Answers based on plant encyclopedia data
