36-48" tall x 12-18” wide. Deep Purple™ Hydrangea is simply covered in vibrant blooms that are sure to turn heads. Young plants make lovely centerpieces for summer gatherings. The deep green foliage is relatively small for a bigleaf hydrangea, and it has a distinctive dark coloration that complements the vivid blooms. We recommend mixing a soil acidifier into container soils or using an acid-based potting blend to promote the deepest purple flower color. In gardens, test soil pH and amend in spring as needed to maintain acidity. Bigleaf hydrangeas grow best with morning sun and afternoon shade. Avoid hot, exposed sites. United States Plant Patent PP#28,940.