How To Care For Hydrangeas Pruning. Hydrangeas that bloom on last seasons growth old wood will need a layer of straw or mulch to protect the stems through winter. Limelight hydrangeas bloom on new wood.
Use the pruner to cut two to three inches above the soil level. Water everything quickly so it has the opportunity to douse down to the entirety of the roots. You can prune in the Spring.
In spring you can begin to add hydrangea feed to your hydrangeas to give it the supplements it requirements for new development.
Then no matter which type of hydrangea you have dont prune more than one-third of the shrub. Dont prune away stems that will bloom. If pruning is desired do so just after the shrubs first flush of flowers. Use the pruner to cut two to three inches above the soil level.