Asclepias physocarpus (Balloon Plant)
Noted for its curious balloon-like seed pods, Gomphocarpus physocarpus (Balloon Plant) is an upright perennial producing slender stems clad with lance-shaped, pale lime-green leaves. Pendulous clusters of small, white flowers with a slight vanilla scent are borne in the leaf axils in summer. Although not particularly showy, they attract butterflies and are followed by unusual, pale green fruits, up to 3 in, across (7 cm), almost translucent, covered with soft bristles. They ripen to tan before splitting open in fall and release great quantities of silky-haired seeds to the wind. Balloon Plant is an unusual addition to sunny beds and borders, as a specimen plant, or in large containers. Wonderful in fresh and dried floral arrangements. A real conversation piece!
- Grows up to 4-6 ft. tall (120-180 cm) and 2-3 ft. wide (60-90 cm). Self-seeds profusely in warm winter areas.
- Thrives in full sun in dry to medium, well-drained soils. Drought tolerant.
- Low maintenance, this perennial plant is generally pest and disease free. Deer resistant.
- Perfect for sunny borders, cottage gardens, butterfly gardens and prairies or naturalized areas.
- Easily propagated from seed.
- All parts of this plant exude milky white latex that is mildly poisonous if ingested.
- Toxic to dogs, toxic to cats, toxic to horses.
- In 2001, its name was changed from Asclepias physocarpa to Gomphocarpus physocarpus to reflect that it belongs to the family of African milkweeds.
- Native to South Africa
Requirements
Hardiness | 8 – 10 |
---|---|
Heat Zones | 10 – 12 |
Plant Type | Perennials |
Plant Family | Asclepias |
Exposure | Full Sun |
Season of Interest | Summer (Mid,Late) |
Height | 4' – 6' (120cm – 180cm) |
Spread | 2' – 3' (60cm – 90cm) |
Spacing | 24″ – 36″ (60cm – 90cm) |
Water Needs | Low, Average |
Maintenance | Low |
Soil Type | Chalk, Clay, Loam, Sand |
Soil pH | Acid, Alkaline, Neutral |
Soil Drainage | Well-Drained |
Characteristics | Dried Arrangements, Cut Flowers, Fragrant, Showy |
Tolerance | Deer, Drought |
Attracts | Butterflies |
Garden Uses | Beds and Borders |
Garden Styles | Informal and Cottage, Prairie and Meadow |