Hardy Eucalyptus Board
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Re: Eucalyptus perriniana growth rate
well, since in natural habitat most walnut trees grow as part of mixed forest with many other trees without harming the other non-walnut trees that much I wouldn't be quick to suspect the tree of killing anything or everything near it. certain plants (rhododendrons and azaleas for example, I think) are more susceptible than others and may need planting away from a LARGE walnut tree with lots of spreading roots. again, eucalyptus are used to growing well in very nutrient poor soil so especially if the soil is already been used for vegetable gardening conditions may be more than rich enough for the tree to grow well without much extra help. FWIW, my soil is extremely acid and rather nutrient poor but I don't give my trees ANYTHING extra and many of them have grown extremely fast despite that---one 70' tall or more in 16 years!!!