Gomphocarpus fruticosus

Cotton Bush, African Swallow-wort

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Woody shrub with distinctive inflated seed pods and milky latex. Native to Southern Africa, attracts butterflies but toxic if ingested due to cardiac glycosides.
yard Outdoor plants wb_sunny Sun pets Not pet-safe
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Plant Details

Common Name Cotton Bush, African Swallow-wort
Family Apocynaceae
Genus Gomphocarpus
Species Fruticosus
Origin Southern Africa / Mediterranean
Blooming Produces large inflated capsules after small star-shaped flowers in late summer.
Leaf Color Grey-green to deep green
Sunlight Sun
Category Outdoor plants
Pet Friendly close No
yard

Care & Maintenance

terrain
Soil

Well-drained sandy loam or rocky mix. Drought tolerant once established.

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Watering

Water regularly during active growth, allow soil to dry between waterings. Reduce significantly in winter dormancy.

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Sunlight & Care

Requires full sun exposure for optimal growth and flowering. Avoid deep shade indoors.

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Fertilization

Apply balanced liquid fertilizer monthly during spring/summer growing season only.

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Pruning

Prune back hard in late winter to remove dead wood and maintain bushy shape.

Pest Control Aphid Mealybug Monarch Caterpillar Scale Insect

These are the insects and pathogens that commonly interact with this plant, including pests, parasites, and organisms typically associated with its care.

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Seasonal Periods

local_florist Flowering Period 4 months
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
eco Leaf Persistence 12 months
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
thermostat

Growing Parameters

thermostat
Temperature
50° – 95°
Fahrenheit
Ideal ambient air temperature range for healthy growth
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Humidity
40% – 70%
% relative
Optimal relative air humidity the plant thrives in
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Light (LUX)
10000 – 60000
Lux
Ambient illuminance level at the plant's surface
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Light (PAR)
2500 – 4000
mmol/m²/s
Photosynthetically active radiation (PAR) intensity
water
Soil Moisture
20% – 65%
% volumetric
Water content in the growing medium
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Soil EC
300 – 1800
mS/cm
Electrical conductivity (nutrient concentration in soil water)

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