Answer: It can take longer than 3 weeks for the roots of your plants to become established in their new homes. While they are becoming established, you'll see some wilting and yellowing and even browning of leaves. Hydrangeas grow best in morning sun and afternoon shade. Hot summer sun can cause the leaves to wilt but they generally perk up overnight. To help your hydrangeas establish their roots, water deeply once each week. You can pull the yellowing leaves off the shrubs and they should replace the lost leaves, once the roots become established.
Enjoy your new plants!
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