Gomphocarpus Species, Cape Milkweed, Wild Cotton Milkweed

Gomphocarpuscancellata

Family
Apocynaceae (a-pos-ih-NAY-see-ee)
Genus
Gomphocarpus (gom-fo-KAR-pus)
Species
cancellata (kan-sell-AY-tuh)
Synonym
Asclepias arborescens
Asclepias cancellata
Asclepias crassifolia
Asclepias pubescens
Gomphocarpus arborescens
Sun Exposure
Sun to Partial Shade
Foliage
Deciduous
Height
4-6 ft. (1.2-1.8 m)
Spacing
36-48 in. (90-120 cm)
Hardiness
USDA Zone 10a: to -1.1 °C (30 °F)
USDA Zone 10b: to 1.7 °C (35 °F)
USDA Zone 11: above 4.5 °C (40 °F)
Danger
All parts of plant are poisonous if ingested
Bloom Color
White/Near White
Cream/Tan
Bloom Time
Late Spring/Early Summer
Mid Summer
Other Details
Category
Shrubs
Water Requirements
Foliage Color
Where to Grow
Bloom Characteristics
This plant is attractive to bees, butterflies and/or birds
Bloom Size
Other details
Soil pH requirements
Patent Information
Non-patented
Propagation Methods
From softwood cuttings
From seed; direct sow after last frost
Seed Collecting
Allow pods to dry on plant; break open to collect seeds
Remove fleshy coating on seeds before storing
Properly cleaned, seed can be successfully stored
Regional

This plant is said to grow outdoors in the following regions:

San Marcos, California

San Pedro, California

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Gardener's Notes:

1
positive
1
neutral
0
negative
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P
San Pedro, CA | January 2017 | positive

I purchased this plant in 10/2016 from Annies along with a few other varieties of Asclepias. This was the first one to host a Monarch chr...Read More

P
Dewey, AZ (Zone 8b) | May 2016 | neutral

I can only give it a Neutral at this time for lack of experience with this plant. It does receive a Positive on how fast it grows once th...Read More

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