Hydrangea serrata ‘MAK20’ (Tuff Stuff)

(Tuff Stuff Mountain Hydrangea)


Hardiness Zones:

 5a  5b  6a  6b  7a  7b  8a  8b  9a  9b

Quick Overview:

As its name promises, this new Mountain Hydrangea is very hardy and reblooms consistently on new wood until frost. The large, reddish pink or purple-blue florets have a contrasting greenish white eye, with burgundy fall foliage completing the season-long color show.


Best grown in rich, medium moisture, well-drained soils in part shade. Soil pH affects the flower color (blue in highly acidic soils and lilac to pink in slightly acidic to alkaline soils). Add aluminum sulfate to the soil to make the flowers bluer or add lime to the soil to make the flowers pinker. Begin soil treatments well in advance of flowering, as in late autumn or early spring. Plants generally need little pruning. If needed, prune immediately after flowering by cutting back flowering stems to a pair of healthy buds. Prune out weak or winter-damaged stems in late winter/early spring. Best to mulch plants year-round with 3″ of shredded bark, peat or compost. Winter hardy to USDA Zone 6.

Additional information

Common Name

Tuff Stuff Mountain Hydrangea

Botanical Name

Hydrangea serrata 'MAK20'


3 gallon

Evergreen or Deciduous


Hardiness Zone

5a, 5b, 6a, 6b, 7a, 7b, 8a, 8b, 9a, 9b

Growth Rate


Light Requirements

Part-shade, Part-sun, Shade


3 to 4'


3 to 4'

Soil Condition


Water Needs


Blooming Period

early summer

Flower Color

Blue to pink/purple



Foliage Color


Deer Resistant


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