Alliums:

Gladiator, Giganteum & 'Drumsticks'
Botanical name: Allium.giganteum, A.sphaerocephalum 'Drumstick' & A.'Gladiator'
Plant/bulb type: True bulb
Height: Planting time: late Summer to late Autumn.
Depth & spacing: Aspect: Full sun
Soil: Well drained.
Watering: Start watering when growth appears and keep soil slightly moist until foliage dies off after flowering. keep dormant bulbs dry.
Fertilising: Incorporate fertiliser into soil prior to planting & top dress each Autumn.
Flowering time: Early Summer.
After flowering care: Keep watering until foliage dies back. Leave the bulbs undisturbed, they will flower each year. 1