Answer: Acid soil may be only one of the problems associated with planting under evergreens. The soil under such trees is typically dry because tree roots drink up all the moisture, and tree canopies block natural rainfall. Shade can be a problem as well. So, taking all of these challenges into consideration, why not try planting Pachysandra, Vinca minor, Lamium (dead nettle), or Ajuga in the site? All perform well in my garden under pine trees and they're all well-behaved (non-invasive) groundcovers.
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