May I plant where a big tree used to be?
There is nothing wrong with planting trees in the exact same spot where a former tree existed. However, make sure you do not plant the new tree in raw sawdust produced by grinding the stump of the old tree. Raw sawdust consumes nitrogen as it decays, and your new tree can suffer and turn yellow. It is best to have the sawdust removed after the stump is ground.
Despite folk tales to the contrary, there is no evidence that the soil where an evergreen formerly existed is permanently damaged. The ground beneath evergreens is quite sterile, not due to the effects of fallen needles on the soil, but because evergreen roots are near the surface use moisture and nutrient, and the trees provide deep shade. The combination of the two makes it nearly impossible for anything to grow under an existing evergreen. When the evergreen is removed, however, it leaves no permanent and lasting effects on the soil.
Black Walnut trees, once native in our area, but now quite rare, leave a chemical in the soil which makes the growing of other trees difficult for up to five years following the removal of a the Black Walnut.
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