A little patch of what I believe to be wild strawberry (or ornamental
strawberry, I'm guessing) sprang up in my perennial garden this
season. The leaves look like strawberry leaves, but the strawberries
are small, pistachio-sized fruits that don't look particularly
appetizing. The foliage is fairly attractive, but I'm wondering if
there's a downside to giving it some space in my garden. Is it
invasive?