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Quercus suber occidentalis Cultivation | Propagation | General Uses Cultivation Notes: Prefers a good deep fertile loam which can be on the stiff side[11]. Lime tolerant[188]. Young plants tolerate reasonable levels of side shade[200]. Tolerates moderate exposure, surviving well but being somewhat stunted[200]. Cultivated for its bark in Europe, it is the main source of cork[50, 89]. This sub-species has slightly thinner bark than the species[11].Trees are first harvested when they are 25 - 30 years old and are then harvested on a 10 - 12 year rotation. Only hardy in the milder areas of Britain[200], it is not very frost resistant[98]. This sub-species is somewhat hardier than the type[11]. Trees grow well in Cornwall where there are many large specimens[11, 49, 59]. There is at least one large healthy specimen of this tree at Kew, it produced some seeds in the hot summer of 1989[K]. Transplants badly unless it is moved regularly, it should only be moved in September or as growth commences in late spring[11]. Does not fruit well in Britain. Most of the trees grown in Britain as Q. suber are in fact this sub-species[11]. Hybridizes freely with other members of the genus[200]. This species is notably resistant to honey fungus[88, 200]. For further Quercus suber occidentalis gardening information |
