@gansahadu29
To maintain Chinese hydrangea, you only need these four points
Unlimited space for ground planting, long-term exposure to the sun, sufficient fertilizer, timely pruning when flower buds are seen, and no flowering for 3 years to retain nutrients for better growth. https://imagedelivery.net/BXluQx4ige9GuW0Ia56BHw/9e1e3e77-2849-493b-b0fd-a5e506390400/original