Sweet Thorn

Acacia karroo
 

1/ Grows easily from seed. Seed must be soaked in hot water, left overnight and then sown the next morning. Plant seed either directly into small black nursery bags or in flat seedling trays filled with seedling mix obtainable at any nursery. Cover the seed lightly with sand and keep moist. Seeds usually germinate 3-12 days after being sown. Transplant from the trays when the seedlings unfold their second leaves. In spite of the long taproot, seedlings transplant well. The sweet thorn is frost and drought-resistant, with a fast growth rate, up to 1 m or more per year being normal. It is a protected tree in the Northern Cape and Free State.

2/ It may be grown from seed which should be soaked in hot water and left overnight. You will see if this has been effective as the seed will swell up. Sow the following morning. Seedling trays with seedling mix can be used, or the seeds could be sown directly into black bags. Cover lightly with sand and do not allow to dry out. Germination usually takes 3 - 12 days. The seedling will transplant well in spite of the long tap root. Wait until they unfurl their second leaves before transplanting.

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This web page was last updated on: 07 August, 2012