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Rhus integrifolia Cultivation | Propagation | General Uses Cultivation Notes: Succeeds in a well-drained fertile soil in full sun[11, 200]. Succeeds in a hot dry position. This species is not very hardy in Britain, it may not succeed outdoors even in the mildest areas of the country[200]. Older plants become somewhat hardier and so it is worthwhile growing them on for a few years in pots with some winter protection (such as a cold greenhouse)[K]. Some 4 year old plants were cut back to the base by temperatures below -5°c on our Cornish trial grounds, but they resprouted from the base in early summer[K]. The young growth in spring can be damaged by late frosts. Plants usually form thickets in the wild[229]. Plants have brittle branches and these can be broken off in strong winds[200]. Plants are also susceptible to coral spot fungus[11]. Plants in this genus are notably resistant to honey fungus[200]. Many of the species in this genus are highly toxic and can also cause severe irritation to the skin of some people, whilst other species such as this one are not poisonous. It is relatively simple to distinguish which is which, the poisonous species have axillary panicles and smooth fruits whilst non-poisonous species have compound terminal panicles and fruits covered with acid crimson hairs[1, 4]. The toxic species are sometimes separated into their own genus, Toxicodendron, by some botanists[200]. Dioecious. Male and female plants must be grown if seed is required. For further Rhus integrifolia gardening information |
