Shrubs

Hydrangea serrata 'SMNHSDD'

Tuff Stuff Ah-Ha® mountain hydrangea

Tuff Stuff Ah-Ha® mountain hydrangea. Photo courtesy of Proven Winners.

Double florets resembling tiny waterlilies give this reblooming mountain hydrangea an intricate look. Pink or blue flowers appear from early summer into fall as new buds develop. Its compact mound fits borders, containers and small groups near a path.

At a glance

Sun: Part sun to sun; afternoon shade in hot sites
Mature size: 2–3 ft. tall × 2–3 ft. wide
Water: Even moisture; well-drained soil
Hardiness: USDA zones 5–9
Bloom: Pink or blue-purple; summer–fall

Sizes & prices

#3Proven Winner$49.99

Catalog updated September 8, 2026. This is not a live stock count; please call to confirm availability and price.

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Resistance & tolerances

Wet soil: Moist, well-drained soil; avoid standing water.

Seasonal interest

Foliage: Deciduous.

Growing & care

Pruning: Avoid routine cutting back; remove dead wood in spring after new growth reveals live stems.
Flowering wood: Old and new growth.
Flower color: Varies with soil chemistry.

Sources & photo credits

Proven Winners

NC State Extension

Photo: Photo courtesy of Proven Winners · Authorized nursery promotional use

Reviewed September 21, 2026. Growing conditions vary by location.