Light Needs
Mature Height
Mature Spread
Growing Zones
Wow! The Incrediball® Hydrangea has the largest blooms of any hydrangea! With blooms as big as 12 inches wide! Hydrangea arborescens 'Abetwo' is a smooth hydrangea bred by Proven Winners ColorChoice®. The large blooms are also on very strong stems, that are able to hold the flowers upright, which is a common complaint of Annabelle hydrangeas. The flowers emerge in early summer as light green, then turn to white for most of the bloom period, then back to shades of green later in the year. These are great for cut flowers for bouquets and flower arrangements.
This shrub is native to North America and a great pollinating plant as well. Beneficial pollinating insects also enjoy these enormous flowers. This shrub is something that will stop your neighbors in their tracks once they see it. A truly incredible plant!
Incrediball Hydrangea Care
This hydrangea is very hardy and easy to care for. Plant these in a location that receives partial to full sun, or at least 4-6 hours of sunlight per day. It prefers moist, but well drained soil. We also recommend adding a layer of mulch to help protect roots from extreme weather conditions, and also to help retain moisture.
It is best to prune Incrediball hydrangeas in early spring. Cut back about a ⅓ of the total height of the bush. This will encourage new growth and flowers throughout the year, as well as improve the strength of the branches and stems to be able to hold up these massive flowers. Do not prune back to the ground.
Fertilize in early spring, before new growth starts. You can use general woody plant slow release fertilizer such as rose fertilizers. This shrub blooms on new and old wood, so the shrub will still bloom after very harsh winters, even in zone 3!
Incrediball Hydrangea Spacing
Plant Incrediball hydrangeas 5 to 6 feet apart, center on center. These also make beautiful privacy hedges. In order to grow these as a hedge, we recommend planting 4 to 5 feet apart, center on center. These shrubs can also grow in very large garden planters, but will need extra winter protection in colder climates if you choose to plant these in a pot.
Incrediball® Hydrangea Plant Facts
Growing Conditions
- Hardiness ZonesGrowing Zones
- USDA Zones 3 to 8 (perennial); grown as an annual elsewhere (outdoors year-round); grown indoors elsewhere (outdoors year-round); grown in containers elsewhere (grown as a seasonal crop)
- Sun Exposure
- Part Sun to Full Sun (5+ Hours Direct Sun)
- Mature Height
- 4-5 Feet
- Mature Spread
- 4-5 Feet
- Growth Habit
- , Mounded
- Water Needs
- Consistently Moist
Flowers & Foliage
- Flower Colors
- , White
- Flower Description
- White
- Bloom Time
- Early Summer to Late Summer
- Blooms On
-
New Wood
?
"Blooms on" tells you which stems produce flowers, which decides when it's safe to prune.
- New Wood: Flowers form on stems that grow this season. Prune in late winter or early spring without losing blooms.
- Old Wood: Flower buds form on last year's stems. Prune right after flowering. Pruning in fall or early spring removes next year's blooms.
- Both New and Old Wood: Blooms on last year's stems and again on new growth, so it flowers even after a hard winter or a mistimed pruning. Prune lightly after the first flush of blooms.
- When to Prune
- Late winter to early spring, before new growth starts
- Foliage Color
- , Green
- Foliage Description
- Dark Green
- Foliage Type
- , Deciduous
- Seasonal Interest
- , Summer Flowering, Fall Interest, 3 Season Interest
Garden Benefits
Plant Overview
- Common Name
- Incrediball® Hydrangea
- Botanical Name
- Hydrangea arborescens 'Abetwo' USPP 20,571
- Brand
- Proven Winners
- Plant Type
- Smooth Hydrangea
Simple Plant Spacing Calculator
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.
Also Known As:
Quart
Plant Age:
~ 6 months - 1 year
Plant Size:
~ 4"-8"
Pot Size:
~ 4.75"H x 4.5"W
Volume:
1.50 quarts
Also Known As:
2.5 Quart Pot
Plant Age:
~ 1 - 2 years old
Plant Size:
~ 8"-12"
Pot Size:
~ 6.5"H x 6.5"W
Volume:
2.20-2.30 quarts
Also Known As:
#1 Container
1 Gallon
Plant Age:
~ 1 - 2 years old
Plant Size:
~ 10"-14"
Pot Size:
~ 7"H x 7.75"W
Volume:
2.26-3.73 quarts
Also Known As:
#2 Container
2 Gallon
Plant Age:
~ 1.5 - 3 years old
Plant Size:
~ 12"-18"
Pot Size:
~ 9.5"H x 9.5"W
Volume:
1.19-1.76 gallons
Also Known As:
#3 Container
3 Gallon
Plant Age:
~ 2 - 4 years old
Plant Size:
~ 12"-30"
Pot Size:
~9.5"H x 11"W
Volume:
2.32-2.76 gallons
Also Known As:
#5 Container
5 Gallon
Plant Age:
~3-4 years old
Plant Size:
~ 20" - 60"
Pot Size:
~11" H x 10 1/2” W
Volume:
3.5 - 4 gallons
We stand behind our plants with industry-leading guarantees to give you peace of mind.
We want your plants to arrive in great condition! If you notice any issues upon delivery, contact us within 3 days.
Starting January 1, 2026 all bushes, perennials & trees purchased come with an extended 1-year warranty for added confidence. If your plant dies due to a health issue within a year, we’ll make it right.
Plants that are currently in stock typically ship within 2-7 business days after your order is placed.
Plant Addicts ships to the lower 48 states within the U.S. Unfortunately, we do not currently ship to Alaska, Hawaii, or internationally.
This plant cannot be shipped to the following states: AK, HI. These restrictions apply only to this specific plant due to agricultural regulations or other limitations. Other plants may still be available for shipping to these states.
If you have any questions about shipping restrictions, feel free to reach out to our team!