Allium 'Ostara'

Also Known As

Ostara Ornamental Onion

Plant type

perennial, bulb / corm / tuber

size

H: 12"-24"
W: 8"-12"

planting zones

3a-9b

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Allium 'Ostara' plant details

Allium 'Ostara' is a broadleaf deciduous perennial bulb / corm / tuber with green foliage. In spring and summer purple flowers emerge. Attracts bees, beneficial insects and butterflies making it an excellent addition to pollinator gardens. Grows well with sun - mostly sun and regular - low water. Drought tolerant once established. Prefers to be dry in summer. Does well in average, gritty, rich and well-drained soil. A good option if you're seeking something verticillium wilt resistant.

CHARACTERISTICS OF Allium 'Ostara'

Plant type: perennial bulb / corm / tuber
Plant family: amaryllidaceae
Foliage: deciduous green
Mature size: 8 IN - 12 IN - wide, 12 IN - 24 IN - tall
Flowers: purple blooms in spring and summer
Uses: cutting garden, dried-arrangements, rock garden

GROWING CONDITIONS for Allium 'Ostara'

USDA Zones: 3a - 9b
Sun exposure: sun - mostly sun
Watering frequency: regular - low
Resistant to: deer and rabbit, verticillium wilt
Soil needs: average, gritty, rich and well-drained

Nursery contributed plant descriptions

Allium 'Ostara' is a new hybrid between A. karataviense and A. atropurpureum with dramatic, broad, mid-green leaves that remain green through flowering giving rise to large, deep reddish purple spheres on 16 inch stems. Few plants can offer the unique flower forms of ornamental onions. Every garden should have Alliums. Plant in multiples of 3, 5, 7 or more. Foliage remains green and beautiful during flowering.

By: Phoenix Perennials and Specialty Plants Ltd.

Garden photo gallery of Allium 'Ostara'

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By: Phoenix Perennials and Specialty Plants Ltd.

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Gardening facts about Allium 'Ostara' plant

How to Grow Allium 'Ostara'

Water Needs
- regular - drought tolerant
Water Needs
- dry in summer
Soil Needs
- average
- well-drained
- rich
- gritty
Sun Exposure
- sun - mostly sun
Special Situation
- verticillium wilt resistant

Features

Foliage Season
- deciduous
Flower Color
- purple
Wildlife
- beneficial insects
- bees
- butterflies
- deer resistant
- rabbit resistant
Flower Season
- summer
- spring
Foliage Color
- green