Giant Swan Milkweed. Balloon milkweed is a vigorous heat and sun loving tropical african shrub that is grown as a dieback perennial except in areas with mild winter climates. This milkweed species is a rare find in nurseries so seeds are probably your best option to get started in most regions.
Giant swan plant milkweed for monarchs. Gomphocarpus physocarpus commonly known as hairy balls balloonplant balloon cotton bush bishop s balls nailhead or swan plant is a species of milkweed the plant is native to southeast africa but it has been widely naturalized. An unusual conversation starting milkweed that is eagerly consumed by caterpillars of monarchs queens and possibly soldier butterflies.
In savannah we have had them return slowly from the previous two winters but we are always hedging our bets so to speak and rooting cuttings too.
It can grow up to 6 feet in florida with leathery pale green leaves and white lavender flowers. This means that more than likely you will be growing yours as an annual. Giant swan plant milkweed for monarchs. It is a large shrub growing to 4 m 13 ft tall.