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Details
AKA Giant Swan Milkweed, Cotton-bush, Goose Plant, Family Jewels, and Oscar. Extremely popular in the cut flower industry for its unusual ball shaped seed pods, and the flowers, though less showy than other milkweeds, are loved by pollinators. Summer blooming.
Michigan Seeds and Plants grown on our farm, Renegade Acres, in Howell, MI!
Certified Organic by Oregon Tilth.
Additional Info
| Botanical Name | Gomphocarpus physocarpus |
|---|---|
| Life Cycle | Annual |
| Min. Time to Germinate | 7 Days |
| Max. Time to Germinate | 30 Days |
| Depth to Sow Seeds | Just Cover; barely cover with soil |
| When to Sow | Indoors 6-8 weeks before last spring frost |
| Growing Height | 4-6 ft. (1.2-1.8 m) |
| Plant Spacing | 36-48 in. (90-120 cm) |
| Hardiness | USDA Zone 8a: to 15F, USDA Zone 8b: to 20F, USDA Zone 9a: to 25F, USDA Zone 9b: to 30F, USDA Zone 10a: to 35F, USDA Zone 10b: to 40F |
| Sun Exposure | Full Sun, Sun to Partial Shade |
| Danger | All parts of plant are poisonous if ingested |
| Bloom Color | Chartreuse (Yellow-Green), Green, White/Near White |
| Bloom Time | Late Summer/Early Fall, Mid-Summer |
| Foliage | Smooth-Textured |
| Other Details | Drought-tolerant; suitable for xeriscaping, Flowers are good for cutting |
| Soil pH Requirements | 5.6 to 6.0 (acidic) |
| Propagation Methods | From seed; direct sow after last frost, From seed; direct sow outdoors in fall, From seed; sow indoors before last frost |
| Seed Collecting | Allow pods to dry on plant; break open to collect seeds, Allow seedheads to dry on plants; remove and collect seeds, Bag seedheads to capture ripening seed, Properly cleaned, seed can be successfully stored |
| Seeds Per Pack | 25 |
