Bluegum eucalyptus generally does not form a taproot. It produces roots throughout the soil profile, rooting several feet deep on soils that permit it, or shallowly otherwise. On shallow soils, subsoiling to permit greater depth of rooting has markedly improved growth (8). On most trees all the roots are below the lignotuber, but occasionally, adventitious roots result from layering of the stem above the lignotuber. The tree is windfirm by the time it reaches sapling size, but because the root system develops slowly, it can be windthrown when a seedling.
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