Lacecap Hydrangea

About this plant

Hydrangea serrata 'Blue Billow' is a captivating deciduous shrub prized for its elegant lacecap flowers. These unique blooms feature a central cluster of small fertile flowers encircled by larger, showy sterile sepals, creating a refined and airy appearance. In acidic soils, the blossoms unfurl in serene shades of sky blue, while in more alkaline conditions, they present as soft pinks, offering a dynamic display that can be influenced by soil amendments. Its compact, mounding habit makes it an excellent choice for borders, foundation plantings, or as a graceful specimen in smaller gardens. Flowering profusely from early summer into fall, 'Blue Billow' provides continuous color and texture to the landscape. Its attractive foliage remains fresh throughout the growing season, turning to warm hues in autumn before shedding for winter.

Care & maintenance

Lacecap Hydrangeas thrive with consistent moisture and well-draining soil. Amend heavy clay soils with organic matter to improve drainage. Prune in late winter or early spring just as new growth begins, removing only dead or weak stems. While it blooms on old wood, minimal pruning is generally needed. Fertilize sparingly in spring with a balanced slow-release fertilizer if soil nutrients are low.