Climbing Onion Bowiea volubilis
Other Common Name(s):
Previously known as:
- Schizobasopsis volubilis
- Phonetic Spelling
- boh-wee-AY-ah vol-OO-bil-iss
- This plant has low severity poison characteristics.
- See below
- Description
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Climbing Onion is a large, exposed, green, scaly bulb with slender, twining, leafless, green stems and small, green-white flowers. It is a succulent perennial that thrives in the dry desert regions of eastern and southern Africa, but outside of its native environment, it is more often grown as a houseplant or as a specimen plant. The plant has overlapping scales, which form a spherical bulb that grows to 8 inches above the soil and sends up a twining, green, branched stem with few linear deciduous leaves. In winter, the plant is dormant and the outer scales dry to a paper-like state. In late spring and summer, the plant produces one or more fast-growing stems covered with leafless side-branches that may fall off. The small greenish-white flowers appear in spring. The genus is named after James Bowie, a nineteenth-century British plant collector for Kew Gardens, and there is a single species, volubilis.
Climbing Onion prefers gritty well-drained soil in partial sun to shade. Water regularly during the growing season, and rarely if at all during dormancy. Propagate from seed, divisions, or from individual scales. The plant is not cold hardy and will suffer at temperatures below 50 degrees F. The plant is not an onion and is not edible, but rather is in the lily family.
Diseases, Insect Pests, and Other Plant Problems:
No known diseases or insect pests.
- See this plant in the following landscape:
- Cultivars / Varieties:
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- Tags:
- Cultivars / Varieties:
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- Tags:
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Attributes:
- Genus:
- Bowiea
- Species:
- volubilis
- Family:
- Asparagaceae
- Life Cycle:
- Bulb
- Perennial
- Recommended Propagation Strategy:
- Division
- Seed
- Country Or Region Of Origin:
- Uganda to South Africa
- Climbing Method:
- Twining
- Edibility:
- Despite its common name, it is not an edible onion.
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Whole Plant Traits:
- Plant Type:
- Houseplant
- Perennial
- Poisonous
- Succulent
- Habit/Form:
- Ascending
- Climbing
- Growth Rate:
- Medium
- Maintenance:
- Low
- Texture:
- Medium
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Cultural Conditions:
- Light:
- Full sun (6 or more hours of direct sunlight a day)
- Partial Shade (Direct sunlight only part of the day, 2-6 hours)
- Soil Texture:
- Sand
- Shallow Rocky
- Soil Drainage:
- Good Drainage
- Occasionally Dry
- USDA Plant Hardiness Zone:
- 10a, 10b
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Flowers:
- Flower Color:
- Green
- White
- Flower Inflorescence:
- Solitary
- Flower Bloom Time:
- Spring
- Flower Shape:
- Star
- Flower Size:
- < 1 inch
- Flower Description:
- Small, green-white flowers appear along the stems.
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Leaves:
- Leaf Color:
- Insignificant
- Hairs Present:
- No
- Leaf Description:
- Leafless
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Stem:
- Stem Color:
- Green
- Stem Is Aromatic:
- No
- Stem Description:
- In late winter, vining stems emerge from the bulb and grow up any nearby support. As they mature, dense lacy branches form. When fall arrives, the growth dies back.
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Landscape:
- Landscape Location:
- Container
- Houseplants
- Landscape Theme:
- Drought Tolerant Garden
- Design Feature:
- Specimen
- Resistance To Challenges:
- Drought
- Dry Soil
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Poisonous to Humans:
- Poison Severity:
- Low
- Poison Symptoms:
- Toxic if large quantities are eaten. Minor skin irritation lasting only a few minutes. Nausea, vomiting, diarrhea, abdominal pain, cramping, slow pulse; contact with bulb can cause irritation of wet skin
- Poison Toxic Principle:
- Cardiac glycosides
- Causes Contact Dermatitis:
- No
- Poison Part:
- Bark
- Flowers
- Fruits
- Leaves
- Roots
- Seeds
- Stems