You can add vivid late-season color and pollinator activity with Buddleia × 'Blueberry Pie™', a compact butterfly bush selected for blue-purple blooms on a manageable, mounding shrub. In bloom, the flower spikes draw attention from summer into fall and can bring in butterflies and hummingbirds in the right garden setting.
Give your plant a spot in full sun for best flowering. Plant in well-drained soil and water regularly during establishment; once rooted in, aim for even moisture without keeping the soil soggy. This shrub is a good fit for mixed borders, foundation plantings, and sunny patio containers where you want color without a large footprint.
Mature size is typically about 24-36 inches tall, with a similar spread in many landscapes. Allow room for air circulation, and use the mature width as a guide for spacing if you plant more than one. Deadheading can help keep the plant looking tidy, but the main goal is steady new growth that supports flowering through the season.
In late winter or early spring, you can prune to shape and encourage fresh stems for the coming bloom cycle. Remove any weak or damaged wood, then shorten remaining stems to a size that suits your bed or container. In cold-winter areas, top growth may die back and regrow from the base; check stems in spring and prune after you see what has survived. Buddleia × 'Blueberry Pie™' is generally hardy in USDA zones 5-9.