Shirofuji Hydrangea. This has to be one of the most charming little Hydrangeas that I have ever seen. Fully double, pure white florets adorn irregularly shaped heads on a plant which looks like it will not get any larger than 30". Even the leaves are small and are to the scale of the diminutive size of the plant. I gave one of these for the plant auction at the Hydrangea conference, and it went for the highest sum of any other plant: $175.00. Everyone is charmed by this plant. It performs well in morning sun and afternoon shade or filtered sun. If pruning is needed, prune immediately after flowering, this way one will not impede flower bud set for the following spring. Here in zone 8 they flower from May through June. I haven't seen any remontant flowering "serratas."