Blaumiese (Tellers Blue) is the hydrangea I planted in my yard because of its dense caerulean blue lacecap flowers; the shrub is about 5′ tall.

What is important about this pink or blue dense mophead is that it flowers on new wood.

The light pink or blue mop-head flowers are nice and the light green foliage agreeable, but what grabs your attention is the black stems.

Japanese hydrangea; pink lace cap with flowers on erect peduncles.

One of the earliest to bloom (white flowers) and hardiest (zone 4) and attractive hydrangeas.

This Japanese Hydrangea has double pink flowers standing out from the center on stiff peduncles

This Japanese Hydrangea is a blue lacecap, but the infertile flowers are suspended on long graceful peduncles. The bush is short and compact with shiny green leaves set off by obvious veining..