new year, new deal: save 10% on all pre-order annuals! | FREE Shipping $45+

new year, new deal: save 10% on all pre-order annuals! | FREE Shipping $45+


Tuff Stuff Ah-Ha® Mountain Hydrangea (Serrata)

  • continuous blooms
CHOOSE Size Size Guide
Pre-Order Annuals ship May 2nd-7th. All Shrubs, Seeds, & Supplies: Orders placed today will ship Monday.

Full Sun
Part Sun
Height24 - 36 In
Spread24 - 36 In
Current Location:
We guarantee our shrubs for one year after purchase.
Learn more about our easy returns & exchanges.

Tuff Stuff Ah-Ha is one of the most prolific reblooming hydrangeas we've ever seen. All summer long, it devotes its energies to creating flower buds on its new growth so you have a constant supply of fabulous blooms from early summer through frost. Tuff Stuff Ah-Ha hydrangea will bloom pink or blue, depending on soil chemistry.

  • 2-3 feet tall and wide at maturity
  • Grow in zones  5-9
  • Plant in partial sun (4+ hours daily) in southern climates and partial to full sun in northern climates. 

Care: Fertilize with Proven Winners Continuous Release Plant Food in spring and mid-spring. It does not require pruning except to remove any dead wood in early spring. You should not cut back or trim this plant at any time of the year, as doing so will remove flower buds.

Shipping Info:

  • 1-gallon shrubs are 6-24 inches tall at shipment

  • Quart shrubs are 5-8 inches tall at shipment

    • Varies on the season and plant



    • Hardiness Zones: 05 06 07 08 09
    • Height: 24 - 36 In
    • Spread: 24 - 36 In
    • Habit: Mounded
    • Bloom Color: Blue
    • Bloom Color: Pink
    • Foliage Color: Green
    • Bloom Time: Summer-Fall
    • Plant Type: Shrub
    Customer Reviews
    5.0 Based on 5 Reviews
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    Filter Reviews:
      Denise A.
      United States United States
      Proven Winners is my go to!

      I love all of my purchases from Proven Winners. I have found that if I follow the instructions my plants thrive.

      Pamela J.
      United States United States
      Proven Winners are Winners at shipping

      Just received. Packaging was superb. We have ordered plants from QVC, both Robertas and Cottage Farms, Amazon and now Proven Winners. Proven Winners wins hands down for packaging. Hubby was most impressed. Haven’t got them in the ground yet but having bought the product from local nurseries before we are positive we will be very happy with this product. Check back in September.

      Lorrie H.
      United States United States
      Oh my goodness!

      These plants arrived in full bud, and they were huge plants! I planted them the next day and oh my, I had no idea they would be this beautiful. Such large lacy flowers that last and last with new buds setting it seems daily! A must for anyone who love Hydrangeas! One gallon Tuff Stuff Ah-ha hydrangea

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