Succeeds in most soils so long as they are not water-logged[200]. Another report says that it needs an acid soil[182]. Hardy to about -20°c[184]. Plants are very slow growing[11] and seldom exceed 1metre in height in British gardens[184]. Plants have stoloniferous roots[182]. This species is closely related to I. coriacea[182]. There are some named varieties, selected for their ornamental value[200]. Resents root disturbance, especially as the plant grows older[1, 11]. It is best to place the plants into their permanent positions as soon as possible, perhaps giving some winter protection for their first year or two[K]. Plants are very tolerant of pruning and can be cut right back into old wood if required[188]. Dioecious. Male and female plants must be grown if seed is required. A report says that some plants are monoecious. The plant is heat tolerant in zones 9 through 1. (Plant Hardiness Zones show how well plants withstand cold winter temperatures. Plant Heat Zones show when plants would start suffering from the heat. The Plant Heat Zone map is based on the number of "heat days" experienced in a given area where the temperature climbs to over 86 degrees F (30°C). At this temperature, many plants begin to suffer physiological damage. Heat Zones range from 1 (no heat days) to 12 (210 or more heat days). For example Heat Zone. 11-1 indicates that the plant is heat tolerant in zones 11 through 1.) For polyculture design as well as the above-ground architecture (form - tree, shrub etc. and size shown above) information on the habit and root pattern is also useful and given here if available. An evergreen. A clumping plant, forming a colony from shoots away from the crown but with a limited spread [1-2].

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