Vachellia karroo, commonly known as the sweet thorn, common acacia, Karoo thorn, Cape gum or cockspur thorn, is a species of Vachellia, native to southern Africa from southern Angola east to Mozambique, and south to South Africa.It is a shrub or small to medium-sized tree which grows to height of 12m. It is difficult to tell apart from Vachellia nilotica subsp. adstringens without examining the seed pods. The Botanical Society of South Africa has accepted a name change to Vachellia karroo.Common names in various languages include doringboom, soetdoring, cassie, piquants blancs, cassie piquants blancs, deo-babool, doorn boom, kaludai, kikar, mormati, pahari kikar, umga and udai vel.
Sweet thorn is resistant to disease and is generally not susceptible to illnesses. Regarding care, this plant is fairly low-maintenance. When grown outdoors it needs little watering, and larger plants typically do not require pruning. Smaller plants, however, should be pruned after they finish blooming. Sweet thorn is suitable for anyone with outdoor space, such as a garden or deck, and does not demand extensive gardening experience.
How to keep Acacia Karroo.
Light
Sweet thorn prefers situations that provide abundant sunlight each day. The plant's growth and overall health depend greatly on having ample light. Although it is adaptable, its vigor can decline if it experiences insufficient light.
Temperature
Sweet thorn is native to habitats where temperatures range from 68 to 100 °F (20 to 38 °C). It does best in those climatic conditions. In other seasons, if necessary, adjusting the temperature to imitate its natural habitat can be beneficial.
Fertilizer
The best time to fertilize a Sweet thorn is in early spring, when it comes out of dormancy. This encourages overall growth and supports flower development. Fertilizing improves the foliage, stems, and branches, and promotes flowers that are large, vibrant, and long-lasting. It also helps move nutrients from the roots to the flowers and enhances the plant’s health and resistance to disease.
Botanical profile.
- Plant Type
- Tree, Shrub
- Life Cycle
- Perennial
- Genus
- Acacia
- Family
- Leguminosae
- Hardiness Zone
- 10-12
- Mature Height
- 11.89 m
- Mature Spread
- 3.96 m to 7.92 m
- Leaf Color
- Green, Dark Green
- Leaf Type
- Deciduous
- Flower Color
- Yellow
- Flower Size
- 1.02 cm to 1.52 cm
- Bloom Time
- Summer
- Planting Time
- Spring, Summer, Autumn
- Harvest Time
- Late summer, Early fall, Mid fall
- Native Area
- Lesotho, Angola, Mozambique, South Africa, Namibia, Eswatini, Botswana, Zimbabwe
Other names.
