Hydrangeas ( Hydrangeaspp . ) are pop spring - flowering shrubs that produce showy clusters of flowers in varying shapes , calculate on the mintage and cultivar .
Some hydrangea flowers develop in globuse flowerheads sometimes referred to as " snowballs . " A few of these hydrangeas have clean flowers , although you will also recover cultivar with pink and dispirited flowerheads .
Snowball hydrangea are very cold hardy , as they can exist winters in USDA hardiness zone 3 to 9 .
White Snowball Hydrangea Cultivars
Unlike pinkish and blue bigleaf hydrangea ( Hydrangea macrophylla , zones 6 to 9 ) known asmophead hydrangea , which also have globuse flowerheads , white hydrangeas are not subordinate on soil pH for their efflorescence color .
allow ’s look at some cultivar of the aboriginal smooth hydrangea ( Hydrangea arborescens , zone 3 to 9 ) , also known as the wild hydrangea , that have livid , snowball - like flowerheads .
Tip
The rounded flowerheads of white snowball hydrangea do not change color count on the pH of the soil .
Annabelle
TheAnnabelle hydrangea(Hydrangea arborescens’Annabelle ' , zona 3 to 9 ) is a by nature hap cultivar of the smooth hydrangea that was detect in Anna , Illinois . It produces clusters of small , lily-white blooming . Each blossom cluster can be 2 to 6 inches wide .
The Annabelle hydrangea bloom in the main from May through July , with additional sporadic bloom through September .
The Annabelle hydrangea bush has heights between 3 and 5 feet . A likely drawback of this cultivar is that the threatening flowerheads droop down as a result of their weight .
Incrediball®
The flowers of the Incrediball ® hydrangea ( Hydrangea arborescens’Abetwo ' , zone 3 to 9 ) , another white snowball hydrangea , are lime green when they first come forth but become staring white .
This patented cultivar was developed from the Annabelle hydrangea . However , the flowerheads of this cultivar are about a base in diam , which is larger than those of the Annabelle hydrangea . Each flowerhead is also more upright and also has more individual blossom on every flowerhead .
The Abetwo cultivar begins blooming at the first of June and remain in blush for about two calendar month . It has tiptop of between 4 and 5 feet .
Snowball Hydrangea Care
Snowball hydrangea plants are look at relatively low-toned - maintenance shrub . permit ’s look at the care and culture need of these deciduous bush .
Snowball Hydrangea: Sun or Shade?
Like other species of hydrangea , snowball hydrangea do best in part shade . Morning Lord’s Day is better than afternoon sunlight , because these shrub will need a bunch more lacrimation if planted in full Dominicus .
Watering
While they can handle many unlike kinds of territory , the leaves of snowball bushes incline to worsen during drought . They need consistent moisture in parliamentary procedure to do at their best . It is as significant , however , to grow these bushes in well - draining dirt to avoid rootage diseases .
Pruning
The smooth hydrangea and its cultivars bloom on novel woodwind instrument . That means that you may prune these shrubs down to the primer coat in late winter to revitalize the plant without jeopardizing the next class ’s bloom . Doing so is recommend to excite the shrub .
Even when they are not turn off back to the primer , it is a good melodic theme to prune out frail or diseased branches in early spring before fresh growth begins .
