Allium obliquum

Also Known As

Twisted-Leaf Onion

Plant type

perennial, bulb / corm / tuber

size

H: 24"-34"
W: 8"-12"

planting zones

4a-9b

More Options

Allium obliquum plant details

Allium obliquum is a broadleaf deciduous perennial bulb / corm / tuber with blue and green foliage. In summer yellow flowers emerge. Features glaucous texture. 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 obliquum

Plant type: perennial bulb / corm / tuber
Plant family: amaryllidaceae
Foliage: deciduous blue and green
Mature size: 8 IN - 12 IN - wide, 24 IN - 34 IN - tall
Flowers: yellow blooms in summer
Uses: border plant, cutting garden, dried-arrangements, rock garden, unique

GROWING CONDITIONS for Allium obliquum

USDA Zones: 4a - 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 obliquum is unique in offering a tall-stemmed species with sulphur yellow spheres. The foliage and stems are blue. 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. Don't fret when foliage starts to die back just before flowering. It's normal. Just trim the leaves.

By: Phoenix Perennials and Specialty Plants Ltd.

Gardening facts about Allium obliquum plant

How to Grow Allium obliquum

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

Features

Foliage Color
- green
- blue
Flower Color
- yellow
Wildlife
- beneficial insects
- bees
- butterflies
- deer resistant
- rabbit resistant
Flower Season
- summer
Foliage Season
- deciduous
Texture
- glaucous