Limelight Prime Panicle Hydrangea Shrub 12-18" Tall in a Quart Pot. The Limelight Prime hydrangea is even better than the original, stronger stems, earlier bloom, and a slightly smaller size plant. You can use Limelight Prime just about anyway you can imagine flowering hedge, specimen, container, flower garden or anywhere. A favorite of florist it also makes cut flowers fresh or dried. Blooms on new wood every year even in cold climates. To prune simply cut back by 1/3 its total height every spring or you can leave natural but the more you prune the better they bloom. These prefer late after noon shade. These are hardy in zones 3-8 Reach height of 4-6' and 4-5' wide. Planting instructions included with every order. We do not ship to AK, HI P.R.