How To Care For Lace Cap Hydrangea. Here is an article that you may find helpful. Blue Billow Lace-cap Mountain Hydrangea ZONE 5.
Lacecap Hydrangeas bloom on the previous years growth and should not be pruned after Aug. Lacecap hydrangeas easily identified with their blue or pink flowers are best pruned only in the summertime. Fertilizer will definitely help boost your lacecap hydrangeas growth.
These hydrangeas prefer evenly moist soil.
Plant in moist but well-drained soil in sun or partial shade. The color of the flowers will be affected by the pH of the soil. In order to be safe it is important that you prune the lace head hydrangeas in June or July. I have since learned that you should prune a lacecap hydrangea right after they finish flowering good tip to know.