Photo of Allium 'White Giant' foliage by Leafari

Photo by Leafari

Used with permission, all rights reserved

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Allium 'White Giant'

Also Known As

  • Allium stipitatum 'White Giant'
  • Giant Onion
  • White Giant Ornamental Onion

Plant type

perennial, bulb / corm / tuber

size

  • H: 36"-46"
  • W: 3"-12"

planting zones

  • 4a-9b

More Options

Allium 'White Giant' plant details

Allium 'White Giant' is a broadleaf deciduous perennial bulb / corm / tuber with green foliage. In spring and summer white flowers emerge. Features grassy texture. Attracts bees and butterflies making it an excellent addition to pollinator gardens. Grows well with sun and occasional - 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 'White Giant'

Plant type: perennial bulb / corm / tuber
Plant family: amaryllidaceae
Foliage: deciduous green
Mature size: 3 IN - 12 IN - wide, 36 IN - 46 IN - tall
Flowers: white blooms in spring and summer
Uses: award-winning, border plant, container plant, cutting garden, rock garden

GROWING CONDITIONS for Allium 'White Giant'

USDA Zones: 4a - 9b
Sun exposure: sun
Watering frequency: occasional - low
Resistant to: deer and rabbit, verticillium wilt
Soil needs: average, gritty, rich and well-drained

Nursery contributed plant descriptions

Allium stipitatum 'White Giant' is the tallest of the white ornamental onions with huge 6-8 inch wide, pure white spheres held on stems 3-4 feet tall. The foliage is attractive and remains during flowering. 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.
Need a trio of big, bold accent plants for your flower garden? White Giant is a classic and has earned that place in gardening lore by being the best big white allium available. Th tallest of the large snowy ornamental onions, White Giant is a botanical sparkler that catches the eye from across the street. Long lived, super winter hardy and happy in most of the country.

By: Leafari

Gardening facts about Allium 'White Giant' plant

How to Grow Allium 'White Giant'

  • Water Needs

    • occasional - drought tolerant
  • Water Needs

    • dry in summer
  • Soil Needs

    • average
    • well-drained
    • rich
    • gritty
  • Sun Exposure

    • sun
  • Special Situation

    • verticillium wilt resistant

Features

  • Texture

    • grassy
  • Foliage Season

    • deciduous
  • Flower Color

    • white
  • Flower Season

    • spring
    • summer
  • Foliage Color

    • green
  • Wildlife

    • bees
    • butterflies
    • deer resistant
    • rabbit resistant
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