Previously known as:
- Allium procerum
- Phonetic Spelling
- AL-ee-um jy-GAN-tee-um
- This plant has low severity poison characteristics.
- See below
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
- Cultivars / Varieties:
- Cultivars / Varieties:
- Life Cycle:
- Country Or Region Of Origin:
- Particularly Resistant To (Insects/Diseases/Other Problems):
- normally is not susceptible to animals, drought
- 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:
- Full sun (6 or more hours of direct sunlight a day)
- Available Space To Plant:
- Less than 12 inches
- Flower Color:
- Flower Inflorescence:
- Flower Value To Gardener:
- Good Cut
- Flower Bloom Time:
- 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.
- Leaf Value To Gardener:
- Hairs Present:
- Leaf Description:
- The leaves are long, slender, flat or cylindrical and hollow. This plant smells of garlic or onion.
- Stem Is Aromatic:
- Resistance To Challenges:
- Poisonous to Humans
Poisonous to Humans:
- Poison Severity:
- 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:
- Causes Contact Dermatitis:
- Poison Part: