Eventual height & spread
Allium neapolitanum Cowanii Group
ornamental onion (syn. Allium cowanii) bulbs
- 25 × bulbs
- £4.99
- available to order from autumn 2024
- 50 + 25 FREE bulbs
- £9.98 £14.97
- available to order from autumn 2024
Delivery options
- Bulbs (only) £4.95
- Position: full sun
- Soil: fertile, well-drained soil
- Rate of growth: average to fast
- Flowering period: April to May
- Hardiness: fully hardy
- Bulb size: 4
Open clusters of pure white flowers appear in late spring or early summer, creating a soft, lacy effect. The flowers of this allium last for ages after being cut and the bees will find them very attractive, so try to plant them in large numbers. In smaller gardens, they look great in pots where they can sit on a sunny patio. - Garden care: Plant bulbs 10-15cm deep and 10-15cm apart. Avoid excessive moisture from late summer when they become dormant. Over-large clumps can be lifted and divided in autumn or spring.
- Pets: TOXIC if eaten; Humans: Ornamental bulbs - not to be eaten
