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Allium giganteum

Common Name(s):

Previously known as:

  • Allium procerum
Phonetic Spelling
AL-ee-um jy-GAN-tee-um
This plant has low severity poison characteristics.
See below
Description

This plant generally flowers in early summer (June-July) and lasts 2-3 weeks. It is 35-50 inches tall with a large umbel of densely clumped florets. It reproduces by annual daughter bulb replacement and requires a warm (77 to 82 degrees F) to cool (28 to 35 degrees F) to warm (55 to 65 degrees F) annual thermoperiodic cycle. This plant tolerates summer drought; however, keep it moist during growing season. It normally is not susceptible to animals.

Allium giganteum is a bulbous herb with characteristic onion or garlic odor. Its leaves are long, slender, flat or cylindrical and hollow. Its flowers are small, 6-parted, and in a cluster at the top of a naked stem.

Found in: Forest and natural areas, as native herbaceous plants; landscape as cultivated perennial; weedy in disturbed areas

Depth: 8 in. to base of the bulb

Usage: Beds, exhibition bulbs, fresh cut flowers

Organ: Tunicated bulb (spring bulb and perennial bulb)

Hardiness: Hardy III - Injured below 5 degrees F (-15 degrees C) when planted

Season: Plant in fall, flowers in early summer

Light: Full sunlight to PM only sunlight

Space: 12 in. apart, 1 bulb per sq. ft.

Flowering Period: Very Late Spring to Early Summer

More information on Allium.

Cultivars:
Tags:
#purple#sun#bulb#poisonous#full sun#summer#drought tolerant#spring#spring bulb#perennial bulb#purple flowers#cut flowers#spring flowers#bedding plant#summer flowers#plant in fall#Tunicated bulb#exhibition bulbs
Cultivars:
Tags:
#purple#sun#bulb#poisonous#full sun#summer#drought tolerant#spring#spring bulb#perennial bulb#purple flowers#cut flowers#spring flowers#bedding plant#summer flowers#plant in fall#Tunicated bulb#exhibition bulbs
  • Attributes:
    Genus:
    Allium
    Species:
    giganteum
    Family:
    Alliaceae
    Life Cycle:
    Perennial
    Country Or Region Of Origin:
    Himalayas
    Particularly Resistant To (Insects/Diseases/Other Problems):
    normally is not susceptible to animals, drought
    Edibility:
    EDIBLE PARTS: Leaves, bulbs, and bulblets. Field garlic (A. vineale) is too strong for most tastes. HARVEST TIME: Only collect plants from areas you know have NOT been treated with pesticides. Gather leaves during spring and fall. Gather bulbs in the second year when they are large enough to use like cultivated onions. Flower stem bulblets are collected during the summer. SAFE HANDLING PROCEDURES: Wash leaves, bulbs and bulblets in warm water to remove dirt and debris. Do not use dish detergent or any type of sanitizer. These products can leave a residue. Use as domestic onions, for seasoning, or raw in salads. Bulbs can be used raw, boiled, pickled, or for seasoning. Their strong taste can be reduced by parboiling and discarding the water. To freeze onions or garlic, one should coarsely chop, blanch two minutes, drain, pat dry, and place them into plastic bags. The bulbs can also be dried for use as seasoning. Use flower bulbs to flavor soup or for pickling.
  • Whole Plant Traits:
    Plant Type:
    Bulb
    Poisonous
  • Cultural Conditions:
    Light:
    Full sun (6 or more hours of direct sunlight a day)
    Available Space To Plant:
    Less than 12 inches
  • Flowers:
    Flower Color:
    Purple/Lavender
    Flower Inflorescence:
    Umbel
    Flower Value To Gardener:
    Fragrant
    Good Cut
    Flower Bloom Time:
    Spring
    Summer
    Flower Description:
    This plant generally flowers in early summer (June-July) and lasts 2-3 weeks. It is 35-50 inches tall with a large umbel of densely clumped florets. The flowers are small, 6-parted, and in a cluster at the top of a naked stem. This plant smells of garlic or onion.
  • Leaves:
    Leaf Value To Gardener:
    Fragrant
    Hairs Present:
    No
    Leaf Description:
    The leaves are long, slender, flat or cylindrical and hollow. This plant smells of garlic or onion.
  • Stem:
    Stem Is Aromatic:
    No
  • Landscape:
    Resistance To Challenges:
    Drought
    Problems:
    Poisonous
    Weedy
  • Poison:
    Poison Severity:
    Low
    Poison Symptoms:
    CAUSES ONLY LOW TOXICITY IF EATEN. Poisonous through ingestion. Symptoms may include: nausea, vomiting, and diarrhea. (Poison parts: All parts; bulbs, bulblets, flowers, and stems.)
    Poison Toxic Principle:
    Sulfides
    Causes Contact Dermatitis:
    No
    Poison Part:
    Bark
    Flowers
    Fruits
    Leaves
    Roots
    Seeds
    Stems