This is the last of the ornamental onions to flower, when mop-like heads of rose-purple flowers appear with orange anthers. The flowers are impervious to frost or snow. Superior cultivars include ‘Ozawa’, with larger purple flower heads than the species. A white-flowered form known as A. thunbergii ‘Alba’ is a splendid plant, with cup-shaped florets sporting white stamens, yellow anthers, and green centers.
CareProvide full sun to part shade and average, well-drained soil.
PropagationSow seed in spring in containers or in situ. Divide clump-forming plants in spring.
ProblemsBulb rot in damp conditions. Onion fly and thrips.
Fine Gardening Recommended Products
Morvat Heavy Duty Brass Y-Valve
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- Fitted with US Standard NH 3/4" threads for use with most water source fittings
- Screw the 2 way splitter adapter by hand or wrench with the updated hexagonal top connection. The 360° rotatable swivel connection attaches to any water source.
XLUX Soil Moisture Meter
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- Simply insert the moisture meter into soil and you'll get the test result instantly
- Single probe, less hurts to the roots, doesn't dig up too much soil after test
Johnny’s Selected Seeds Connecta® Cultivation Kit
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- Genus : Allium
- Zones : 4, 5, 6, 7, 8, 9
- Plant Height : 6 to 12 inches
- Characteristics : Attracts Hummingbirds, Fragrant Foliage
- Tolerance : Deer Tolerant
- Bloom Time : Fall, Late Summer, Summer
- Light : Full Sun to Partial Shade
- Maintenance : Low
- Moisture : Medium Moisture
- Flower Color : Red
- Plant Seasonal Interest : Summer Interest
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