Karroothorn
Vachellia karroo
- Native to:
- Angola, Botswana, Caprivi Strip, Eswatini, Lesotho, Malawi, Mozambique, Namibia, South Africa, Zambia, Zimbabwe
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Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Fabaceae
- Genus:
- Vachellia
- Species:
- Vachellia karroo
- USDA Symbol:
- VAKA
Growth Characteristics
- Height:
- 1200 cm
- Light Requirements:
- Full Sun
- Drought Tolerance:
- High
- Bloom Months:
- jan,feb,mar,sep,oct,nov,dec
- Bloom Colors:
- yellow
Garden & Ecology Notes
- Wildlife Value:
- birds, butterflies, mammals
- Salt Tolerant:
- Yes
- Fragrant:
- Yes
- Fire Ecology:
- Fire adapted — tolerates or benefits from fire
- Fire Notes:
- Resprouts vigorously after fire; fire can stimulate seed germination.
Soil Requirements
- Soil Type:
- well-drained sandy or loamy soil
- pH:
- 5.5 - 7.5 (slightly acidic to neutral)
- Drainage:
- excellent drainage required
- Moisture:
- dry to moderate
- Notes:
- tolerates drought conditions
Propagation & Germination
- Stratification:
- Warm stratification required — 30–90 days
- Scarification:
- Seed coat scarification required before sowing
- Germination Time:
- 7–30 days
- Notes:
- Seeds require scarification (nicking or hot water treatment) to break physical dormancy.