Balloonplant
Gomphocarpus physocarpus
- Native to:
- Eswatini, Mozambique, South Africa
Bernard DUPONT (www.flickr.com) from FRANCE






Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Apocynaceae
- Genus:
- Gomphocarpus
- Species:
- Gomphocarpus physocarpus
- USDA Symbol:
- ASPH2
Growth Characteristics
- Life Cycle:
- Perennial
- Growth Habit:
- Forb/herb
- Height:
- 200 cm
- Light Requirements:
- Full Sun
- Drought Tolerance:
- Medium
- Bloom Months:
- jun,jul,aug,sep
- Bloom Colors:
- white, cream
Host Plant for Caterpillars
⚠️Monarch butterfly (Danaus plexippus)
Reported Fauna Sightings
Butterflies:⚠️Monarch butterfly (Danaus plexippus)
Garden & Ecology Notes
- Wildlife Value:
- butterflies, bees
- Deer Resistant:
- Yes
Soil Requirements
- Soil Type:
- well-drained, sandy or loamy soil
- pH:
- 6.0 - 7.5 (slightly acidic to neutral)
- Drainage:
- excellent drainage required
- Moisture:
- dry to moderate
- Notes:
- native to open, sunny grasslands
Propagation & Germination
- Stratification:
- Cold/moist stratification required — 30–60 days
- Germination Time:
- 14–30 days
- Notes:
- Seeds germinate readily with light; warm temperatures (70-75°F) promote germination.
The above propagation data sourced from Claude AI
ORGHPS Germination Guide: Sow @ 20C. Germinates within 3 months.