Hairy Balls Milkweed (Gomphocarpus)
Gomphocarpus physocarpus
Conventionally Grown
AKA Gomphocarpus, Hairy Balls, Swan Milkweed, Balloon Plant. A great conversation starter, this unusual ornamental is grown for its large, papery, balloon-like seed pods that can be used fresh or dried in vase arrangements. The plants are tall and willowy with thin, bamboo-like leaves and small clusters of delicate white flowers with pale-purple centers. While the flowers are pollinated primarily by wasps, the foliage is a good food source for monarch caterpillars. Perennial in zones 8-11; grown as an annual elsewhere. Use caution when harvesting: this plant's milky sap can be irritating to the skin of some sensitive individuals.
Couldn't load pickup availability
Growing instructions
Cold stratification required: sow 9 weeks before last frost in deep seed-starting pots about ¼"" deep, cover and refrigerate for 2 weeks. Afterwards, move to a 70-degree, well-lit spot for germination, which can take up to 21 days. Harden off and transplant outdoors after frost.
Prefers full sun and well-drained soil. Some support may be needed for these tall, willowy plants.
Product Details
| Days to Maturity | 120 |
|---|---|
| Days to Germination | 14-21 |
| Width at Maturity | 36" |
| Height at Maturiry | 72" |
| Sun Conditions | Full Sun |
| Planting Depth | 1/4" |
| Row Spacing | 24" |
| Plant Spacing | 18" |
