Gomphocarpus physocarpus: Asclepias physocarpa is the former botanical name, Goose plant, Giant swan milkweed, Hairy balls, Family jewels, Oscar, Cotton-bush, Balloon plant.
- Perennial for USDA hardiness zone 8 and above (lows -12.2 °C or 10 °F)
- Fast growing annual for colder zones
- Full sun to part shade
- Height: 4 to 6 feet (can grow taller)
- Spacing: 2 to 3 ft
- Flowers: white with purple accents
- Blooms mid to late summer
Seeds are shipped via First Class Mail for no additional shipping fees.