loading

Allium 'Silver Spring'

ornamental onion or allium bulb

Product Image
We fell in love with this allium as soon as we saw it. In early to midsummer each upright stem is crowned with a rounded cluster of small flowers, each with a ruff of rounded white petals that surround a prominent blueberry-purple centre. 'Silver Spring' is great for adding structural interest to the border, and its flowers are ideal for cutting.

How to care for Allium Silver Spring:

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. 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.
Flowering period:
  • Jan
  • Feb
  • Mar
  • Apr
  • May
  • Jun
  • Jul
  • Aug
  • Sep
  • Oct
  • Nov
  • Dec
Eventual height:
0.75m
Eventual spread:
0.15m
Position:

Full sun

Rate of growth:

Average

Soil:

Moderately fertile, moist, well-drained soil

Hardiness:

Fully hardy

  • InformationPets: TOXIC if eaten; Humans: Ornamental bulbs - not to be eaten

Product options

Product options image
BU30001210
1 × bulb
£9.99
available to order from autumn
Product options image
BU30001211
2 + 1 FREE bulbs
£18.98 £6.33 each
available to order from autumn
Delivery options (pick your preferred option at checkout)
Standard delivery Bulbs (only)£4.95

Goes well with

Become an RHS Member today and save 25% on your first year