Australian Plants for Adelaide Gardens - Watering
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There are too many variables such as weather conditions, microclimates, soil, density of planting, the plant itself - its capacity to withstand dry spells to lay down specific guidelines for watering.
Deep soaking by slow irrigation to encourage deep root systems is the recommended method of watering native plants. Frequent light wanderings from a sprinkler or hand-held hose should be avoided as it encourages surface rooting.
A way of reducing water costs is to select species capable of surviving on natural rainfall, once the plant is established. Species native to the area or species from a similar climate and soil type are usually the best choices to meet this requirement.