Photo by Melody

PlantFiles: Smooth Hydrangea, Wild Hydrangea, Sevenbark
Hydrangea arborescens 'Incrediball'

Family: Hydrangeaceae (hy-drain-jee-AY-see-ee) (Info)
Genus: Hydrangea (hy-DRAIN-juh) (Info)
Species: arborescens (ar-bo-RES-senz) (Info)
Cultivar: Incrediball
Additional cultivar information: (aka Abetwo)

» View all varieties of Hydrangeas

14 vendors have this plant for sale.

7 members have or want this plant for trade.

4-6 ft. (1.2-1.8 m)

4-6 ft. (1.2-1.8 m)

USDA Zone 4a: to -34.4 C (-30 F)
USDA Zone 4b: to -31.6 C (-25 F)
USDA Zone 5a: to -28.8 C (-20 F)
USDA Zone 5b: to -26.1 C (-15 F)
USDA Zone 6a: to -23.3 C (-10 F)
USDA Zone 6b: to -20.5 C (-5 F)
USDA Zone 7a: to -17.7 C (0 F)
USDA Zone 7b: to -14.9 C (5 F)
USDA Zone 8a: to -12.2 C (10 F)
USDA Zone 8b: to -9.4 C (15 F)
USDA Zone 9a: to -6.6 C (20 F)
USDA Zone 9b: to -3.8 C (25 F)

Sun Exposure:
Sun to Partial Shade

Unknown - Tell us

Bloom Color:
White/Near White

Bloom Time:
Mid Summer
Late Summer/Early Fall


Other details:
Unknown - Tell us

Soil pH requirements:
Unknown - Tell us

Patent Information:

Propagation Methods:
Unknown - Tell us

Seed Collecting:
Unknown - Tell us

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5 positives
No neutrals
No negatives

Gardeners' Notes:

Positive SpringwoodGrdns On Jun 10, 2014, SpringwoodGrdns from Penn Hills, PA wrote:

A great choice of shrub for moderately experienced gardeners. I say this because Incrediball *is* engineered to produce larger blooms than Annabelle, BUT you as the gardener are responsible for providing the right growing conditions to allow for this to happen.

Some tips:
- Allow small plants (~1 gallon or smaller) three years to become mature and established.
- Trim off spent blooms before winter. At the beginning of Spring, cut old wood down to ~2 feet as the plant begins leafing out. Get rid of any extremely thin and spindly old wood. The remaining old wood will produce healthy stems and flowers and will also help hold up new stems as the plant later blooms.
- Provide adequate soil nutrients. Plant in up to 50% composted soil, and/or soil that is good at retaining moisture. Use standard mulching practices for the base of the shrub. Provide a healthy dose of slow release pellet fertilizer in late April or early May.
- Avoid excessive shade. A good 6 hours of sun exposure can help maximize bloom size.
- Provide drinks for the plant after hot and dry days, as drooping occurs. Water around the base of the plant for 30 seconds with shower setting on hose nozzle. Repeat every 48-72 hours if there isn't regular rainfall.

Positive jTelgardener On Jan 11, 2012, jTelgardener from Mahomet, IL wrote:

I have this plant in full sun where it is thriving. It is two years old, performing very well, and certainly living up to my expectations. I did notice it was a bit floppy the first year, but by the second year most all of the stems were very sturdy. It is planted in average soil, but I made an effort to keep it well watered these past two years, though will probably water less now that it is "settled in." I'm hoping to take some cuttings and start a few more plants around the yard in a partly shaded area.

Positive braun06 On Oct 1, 2010, braun06 from Peoria Heights, IL (Zone 5b) wrote:

Third year in the ground, officially established and the plant has grown huge to 5'. The stems are definitely strong but the flowers are not as huge as I was hoping. As with annabelle you can get huge flowers but location, weather and soils play a huge part of how the flowers themselves grow. I have tons of flowers on my plant but I am lucky to get anything larger than 6" across, have a couple near 7". I don't see any specific reason to offer this plant over Annabelle, if price is a concern go for the one that isn't branded. I don't suspect that side by side you would be able to tell much of a difference except in stem strength. At 5' the flowers do not flop to the ground but do stay upright, even through heavy rain. Newer stems near the ground or the sides do flop however until they get old and thick enough to handle the weight.

Positive Indie On Aug 25, 2010, Indie from Medway, MA (Zone 6a) wrote:

I planted one of these this spring in a sheltered site that gets morning sun and afternoon shade. It grew quite a lot and flowered profusely with huge blooms! The branches did still droop somewhat in the rain with the large blooms though. I'm hoping that once it gets more established and older it will have fewer problems with that.

Positive msconnie On Jun 5, 2010, msconnie from Hendersonville, TN wrote:

I planted Incrediball this spring here in Middle Tennessee. It gets morning sun and afternoon shade. Since it's the first year I didn't expect much but it is blooming and looks very healthy.


This plant has been said to grow in the following regions:

Vidalia, Georgia
Mahomet, Illinois
Peoria, Illinois
Indianapolis, Indiana
Greenville, Maine
Spring Lake, Michigan
Elba, New York
Apex, North Carolina
Raleigh, North Carolina
Verona, Pennsylvania
Hendersonville, Tennessee
Murfreesboro, Tennessee
Nashville, Tennessee
Amelia Court House, Virginia
Salem, Wisconsin

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