lacecaps

Lacecaps are a form of flowering inflorescence most commonly associated with the lacecap hydrangea, Hydrangea macrophylla. The name describes the lace‑like appearance created by a ring of large sterile florets surrounding a center of small fertile flowers. Outer florets are typically four‑petaled sepals and come in colors such as pink, blue, purple, or white depending on cultivar and soil pH. The central disk consists of tiny fertile flowers that may be greenish or pale and often fade as the outer florets mature. Lacecaps are distinguished from mophead hydrangeas, which have large, rounded clusters of florets with similar size; lacecaps appear more delicate because the center is a different form.

They are native to Asia, especially Japan, and are widely cultivated in temperate gardens around the world. In cultivation, lacecap hydrangeas prefer partial shade, rich well‑drained soil, and regular moisture. Many cultivars are responsive to soil pH, with acidic soils promoting blue tones and alkaline soils promoting pink tones, though color can vary by cultivar and growing conditions. They are typically grown as deciduous shrubs or small trees and can reach several feet in height with similar spread.

Pruning should be done with attention to flowering wood: lacecaps typically bloom on old wood, so after flowering you should avoid heavy pruning to preserve next year's blooms; light shaping is possible. Propagation is commonly achieved by softwood cuttings taken in summer or by layering.