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botanical name:
Gomphocarpus physocarpus
Gomphocarpus physocarpus © Deeproot Plant Base
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common name:  Hairy Balls, Swan Plant, Goose Plant, Balloon Cotton Bush
synonyms:  Asclepias physocarpa
family:  Apocynaceae
characteristics: perennial
height: 1.80m
width: 0.75m
growth rate: fast
growth habit: arching
leaf colour: dark green
flower colour: white & green
fruit colour: light green
stem/bark: green
main season: Autumn
poison symbol poisonous or irritant
aspect: full sun, part shade
conditions: moist soil
preferred soil pH: any
minimum temp: -3°C
USDA zone: 9 to 10
Tender subshrubby perennial with long arching stems and narrow dark green leaves. Insignificant green and white flowers, but produced curious, large inflated seed capsules that are transluscent light green and covered with soft spines.
Very similar to G. fruticosa, but with slightly sparser, larger flowers.

Well-drained soil in full sun or part shade. Needs a warm location.

From seed.

Very popular for flower arranging.
Conservatory plant

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