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Macadamia integrifolia Cultivation | Propagation | General Uses Cultivation Notes: Plants grow best in rich moist soils and require copious summer watering in their early stages[167], though established plants are very drought resistant[200]. Trees require a sheltered position and are easily damaged by strong winds[200]. Plants can be grown in climates cooler than their native habitat, but they are not very hardy in Britain. They can survive slight frosts, however[200], and have succeeded outdoors in the Scilly Isles[1]. Growth is optimal between temperatures of 20 - 25°c, ceasing when they fall below 10°c or rise above 30°c[200]. Cold weather can result in the loss of the entire crop[200]. The macadamia nut is cultivated for its edible seed in many tropical and sub-tropical areas[167], there are some named varieties[167, 183]. Plants are slow growing in cultivation, seedlings take 6 - 7 years to produce their first fruit[167]. The trees then produce commercial crops for about 40 - 50 years and can fruit for up to 100 years[200]. Pruning is not normally necessary, but is tolerated if carried out in the autumn[188]. This species was formerly considered to be a part of M. ternifolia[167]. For further Macadamia integrifolia gardening information |
