Keep it simple: Combine just a handful of plants to make a wonderful window box planting.
This container garden is mounding with color and texture. Rich purple foliage from sweet potato vine is the perfect accent for bright pink petunias and calibrachoas. Fill a window box with these plants for a no-fail combination that is sure to turn heads.
A: Superbells Trailing Rose Calibrachoa — 2
B: Supertunia Vista Bubblegum Petunia — 1
C: Sweet potato vine (Ipomoea batatas 'Blackie') — 1