loading

Allium 'Gladiator'

ornamental onion or allium bulbs

Product Image
This allium forms generous clumps of mid-green leaves, which start to die back before the sturdy, upright stems emerge in early summer, bearing large rounded flower heads. The lavender-purple flowers of 'Gladiator' blend well with most shades of pink, as well as stronger purples and plums.

How to care for Allium Gladiator:

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.
Flowering period:
  • Jan
  • Feb
  • Mar
  • Apr
  • May
  • Jun
  • Jul
  • Aug
  • Sep
  • Oct
  • Nov
  • Dec
Eventual height:
1.5m
Eventual spread:
0.3m
Position:

Full sun

Rate of growth:

Average

Soil:

Moderately fertile, moist, well-drained soil

Hardiness:

Fully hardy

  • InformationThis perennial dies back to below ground level each year in autumn, then fresh new growth appears again in spring.
  • InformationPets: TOXIC if eaten; Humans: Ornamental bulbs - not to be eaten

Product options

Add to basket
Product options image
PL30004087
2 litre pot | 1 per pot
£17.99
In stock
(shipped within 2-3 working days)
Remove Add
Product options image
PL30007437
2 + 1 FREE 2 litre pots
£35.98 £11.99 each
In stock
(shipped within 2-3 working days)
Remove Add
Product options image
BU30000002
5 × bulbs
£12.99 £2.60 each
available to order from summer
Product options image
BU30001125
15 × bulbs
£33.00 £2.20 each
available to order from summer
Delivery options (pick your preferred option at checkout)
Standard delivery Standard Delivery£5.95
Nominated delivery Named Day Delivery£10.95

Goes well with

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