- USDA Hardiness Zones 5a - 9b
- Height 2 - 3 Feet Tall
- Spread 2 - 3 Feet Wide
The Tuff Stuff Ah-Ha™ Hydrangea by Proven Winners ColorChoice® is a compact reblooming mountain hydrangea. This shrub blooms every year without fail. It also puts a lot of energy into creating new blooms throughout the year. The flowers are either pink or blue depending on soil pH. The blooms remind us of waterlilies.
This bush blooms from early summer all the way to first frost. It is the most prolific reblooming hydrangea we’ve ever seen! This shrub is native to Japan, and can tolerate very harsh winters even in zones 5 and 6! We love using these as an edging plant, creating a very colorful landscaping border. These are also great as container plants or in mass plantings.
Tuff Stuff Ah Ha Hydrangea Care
We recommend planting this in an area with at least 4 hours of sunlight to ensure the best flowering performance. In hotter climates, such as zones 8 and 9, you must provide afternoon shade for some relief.
Pruning Tuff Stuff Ah Ha Hydrangeas is not necessary. We do recommend trimming off dead branches and leaves throughout the year. If you do prune, you run the risk of cutting off flower buds for next year’s blooming season.
It is best to apply a layer of mulch around the plants. This helps retain moisture as well as adding an extra layer of protection during harsh winter months to the shallow roots.
Fertilize in early spring, before new growth starts to emerge. You can use general slow release fertilizer designed for woody plants that is found at most stores.
Tuff Stuff Ah Ha Hydrangea Spacing
We recommend planting these 2 to 3 feet apart, center on center. If you choose to grow as a small hedge or landscape border, you can plant 18 to 24 inches apart, center on center.
Hydrangea serrata 'SMNHSDD' Plant Facts
USDA Hardiness Zones: 5-9 |
Flower Color(s): Blue, Pink |
Bloom Period: Summer through Fall |
Foliage Color(s): Green |
Exposure: Partial Sun to Full Sun |
Height: 2-3 Feet |
Spread: 2-3 Feet |
Spacing: 2-3 Feet |
Habit: Mounded |
Blooms On: New & Old Wood |
Watering: Average |
Shrub Type: Deciduous |
Type: Mountain Hydrangea |
Scientific Name: Hydrangea serrata 'SMNHSDD' USPPAF |
Common Name: Tuff Stuff Ah Ha Hydrangea |
Brand: Proven Winners ColorChoice® |
- SKU:
- HYDTH
Container Sizes
Please Note: The pictures below are to give a general representation of the different container sizes. The actual size/ages of plants are estimates and will vary based on; type of plant, time of year, last pruning & many other factors.
For more detailed information, please click here.
Plant Addict Guarantee (Included On All Plant Orders)
Plant Addicts Warranty - 1 Year (Extra Purchase Required)

Guide: How to Care for Your New Plant(s)

Planter Shipping
Standard Colors: 2-3 business days
Special Order Colors: 8 weeks - this is due to the planter being custom made with the color(s) of your choice
Please Note: On special orders there can not be any cancellations
Plant Shipping
Time of Order:
Summer Shipping
- If there is extreme heat we’ll delay shipping.
- We’ll have to review what areas the plants are traveling through along with your location
Once your plant is shipped you’ll receive an email with tracking information. Depending on the above criteria we’ll ship your plant(s) towards beginning of the following week from your order. We put together this helpful guide of what to do when you receive your plants in the mail.
It is important to know that all of our plants are clearly labeled for which growing zones the plant can survive in. The plants are thoroughly trialed and tested in every growing zone before we state the plant can grow in a zone. Again, our #1 priority is to ship the plants to you healthy and ready to thrive in your location. So we will do everything in our power to do so.