Hydrangea arborescens WHITE DOME (syn. ‘Dardom’) – A lacecap form of Smooth Hydrangea that features large (6-10″ across) airy white blooms borne in summer that can be dried. The deep green foliage is heart-shaped and held on sturdy branches. It blooms on new wood, so prune in early spring. Tolerates partial shade or sun. Grows 4-6′ high and wide. Hardy to zone 3.
Hydrangea macrophylla ‘Kingfisher’ (syn. ‘Eisvogel’) – Also known as ‘Teller’s Purple’, this lacecap form Bigleaf Hydrangea can shift to pink (as shown) or deep blue depending on the soil pH. The large 6-8″ wide blooms are borne from June to frost. As with most Hydrangea macrophylla, it prefers part to full sun with even soil moisture. Grows 5′ high and wide. Hardy to zone 6.
Hydrangea paniculata ‘Unique’ – Another easy to grow Hydrangea that blooms on new wood, hence the hard prune in spring. It bears 8-10″ long cone-shaped white blooms that fade to light pink as they age (from July to frost). ‘Unique’ is also quite sun tolerant and can be trained into a standard or mini-tree form. Grows 6′ high and wide with pruning. Hardy to zone 3.
Hydrangea strigosa (syn. Hydrangea aspera subsp. strigosa) – A rare species (or subspecies) with beautiful pale blue lacecap flowers that leaves a dusting on the foliage as they fade. The dark green leaves are lance-shaped and quite hairy, forming a dense drooping mound. This native of China prefers shelter from cold winds. Part to full sun. Grows 6’+ high and wide. Zone 7.
Hydrangea quercifolia ‘Pee Wee’ – A dwarf Oakleaf Hydrangea with smaller leaves and flowers. It bears white cone-shaped blooms in summer that fade to pinks and browns by autumn. The oak-shaped leaves accent the whole display with maroon to purple autumn tones. Mature shrubs also exhibit attractive peeling bark. Grows up to 3-4′ high by 3′ wide. Hardy to zone 5.