Sweet Acacia - (Acacia farnesiana)

Prefers a light sandy loam and a very sunny position sheltered from strong winds. Plants can grow well in pure sand. Most species in this genus become chlorotic on limey soils. Established plants are very drought tolerant. The species and its cultivars are reported to exhibit tolerance to drought, high pH, heat, low pH, salt, sand, slope, and Savannah. Plants tolerate a pH range from 5.0 to 8.0. Whilst this species is not very tolerant of cold, being damaged by even a few degrees of frost, the variety A. farnesiana cavenia seems to be more resistant to both drought and frost. Both A. farnesiana and its var. cavenia are extensively cultivated for the essential oil in their flowers in and around Cannes, southern France, which is the centre for production of the perfume[229, 269. A good bee plant. This species has a symbiotic relationship with certain soil bacteria, these bacteria form nodules on the roots and fix atmospheric nitrogen. Some of this nitrogen is utilized by the growing plant but some can also be used by other plants growing nearby.

A low-quality gum obtained from the plant is used to prepare sweets.

Seed - best sown as soon as it is ripe in a sunny position in a warm greenhouse. Stored seed should be scarified, pre-soaked for 12 hours in warm water and then sown in a warm greenhouse in March. The seed germinates in 3 - 4 weeks at 25°c. As soon as the seedlings are large enough to handle, prick them out into individual pots and grow them on in a sunny position in the greenhouse for their first winter. Plant them out in late spring or early summer, after the last expected frosts, and consider giving them some protection from the cold for their first winter outdoors. Cuttings of half-ripe wood with a heel, July/August in individual pots in a frame. Overwinter in a greenhouse for the first winter and plant out in their permanent positions in late spring or early summer. Fair percentage.

Dry sandy soils in pinelands, hammocks and disturbed areas in south-eastern N. America.


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