Striking allium collection
allium collection
- 1 × collection | 20 bulbs
- £13.75 £0.69 each
- Delivered during September
- 2 + 1 FREE collections | 60 bulbs
- £27.50 £0.46 each
- Delivered during September
Delivery options
- Bulbs (only) £4.99
- Position: full sun
- Soil: moderately fertile, moist, well-drained soil
- Flowering period: June
- Hardiness: fully hardy
These striking alliums can be planted in amongst perennials to add an extra layer of flowers, where they appear to 'float' above shorter perennials. Allium hollandicum 'Purple Sensation' is the all-time Chelsea Flower Show favourite and Allium nigrum has been used in many recent Chelsea gardens, proving alliums really stand the test of time.
Bulbs will be delivered during August as soon as they are harvested from our specialist grower.
Bulbs will be delivered during August as soon as they are harvested from our specialist grower.
In each collection you will receive 10 bulbs each of:
- Allium nigrum: The naming of this plant refers to black, but the flower is in fact white. The wide grey-green leaves of this ornamental onion generally have started to die back when the flowers emerge in early summer (June). These sit on tall, sturdy stems forming flattish clusters that create a striking silhouette. Each creamy white flower has a pronounced ovary at its heart, which looks a little like a dark green pearl nestled in the centre. Plant bulbs about 10cm (4in) deep and 25cm (10in) apart in September-October. Likes a sunny border. Grows to 75cm.
- Allium hollandicum 'Purple Sensation': Strap-shaped grey-green leaves start to die back before the densely packed umbels of deep violet, star-shaped flowers appear in early summer. Its striking globe-like architectural silhouette makes it particularly well suited to gravel or prairie-style planting schemes. These alliums are renowned for their large flower heads, which are just as attractive after they have finished flowering as seed heads. Plant bulbs about 15cm (6in) deep and apart to enjoy the full effect of the flowers. Winner of the prestigious Royal Horticultural Society AGM. Also plant in September-October. Grows to 1m.
Allium bulbs are easy to grow in a sunny spot with freely drained soil, or a good quality potting compost. Ideally they should be planted in September or October, but could also be planted in early November in milder regions.
While keeping the size of the flowerhead in mind and avoiding overcrowding, dig holes roughly three times as deep as the diameter of the bulb and place them at the base, pointy side up before gently infilling and watering to settle them in.
In early spring, as growth begins, apply a balanced, slow-release fertiliser, and allow the plants to die back naturally and completely before tidying away.
While keeping the size of the flowerhead in mind and avoiding overcrowding, dig holes roughly three times as deep as the diameter of the bulb and place them at the base, pointy side up before gently infilling and watering to settle them in.
In early spring, as growth begins, apply a balanced, slow-release fertiliser, and allow the plants to die back naturally and completely before tidying away.
- Pets: TOXIC if eaten; Humans: Ornamental bulbs - not to be eaten
