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Incrediball® Smooth Hydrangea Hydrangea arborescens

  • Part Sun to Sun
  • Sun

The optimum amount of sun or shade each plant needs to thrive: Full Sun (6+ hours), Part Sun (4-6 hours), Full Shade (up to 4 hours).

Flower Season
  • Summer
Mature Size
5' 5'
4' - 5'
4' - 5'
  • Details


    Super-sized flowers!

    Incrediball hydrangea will make you say WOW - it's an improved version of the garden classic 'Annabelle' hydrangea, but with strong, sturdy stems that don't flop over and extra-large blooms to boot. White flowers begin to appear in mid-summer and open to enormous snowballs, nearly the size of basketballs! They then age to a lush jade green, which persists through frost. It's a super easy, super reliable North American native that grows in chilly USDA zone 3 all the way up to USDA zone 8/9. Plant Incrediball hydrangea in your landscape and find out for yourself just how big, beautiful, and rewarding it can be.

    Top reasons to grow Incrediball hydrangea:

    - enormous, long-lasting flowers every summer

    - Strong, sturdy stems keeps blooms showy and upright

    - easy to grow native shrub


    As seen in our "Prodigy" magazine ad.

    Best Seller
    Native to North America


    Plant Type: 
    Shrub Type: 
    Height Category: 
    Garden Height: 
    48 - 60 Inches
    60 - 72 Inches
    48 - 60 Inches
    Flower Colors: 
    Flower Shade: 
    Foliage Colors: 
    Foliage Shade: 
    Dark Green
    Container Role: 

    Plant Needs

    Light Requirement: 
    Part Sun to Sun
    Light Requirement: 
    Maintenance Category: 
    Blooms On: 
    New Wood
    Bloom Time: 
    Early Summer
    Bloom Time: 
    Mid Summer
    Bloom Time: 
    Late Summer
    Hardiness Zones: 
    3a, 3b, 4a, 4b, 5a, 5b, 6a, 6b, 7a, 7b, 8a
    Water Category: 
    Cut Flower
    Dried Flower
    Uses Notes: 

    Landscapes, naturalizing, hedges, perennial gardens. Also makes a very dramatic cut flower.

    Maintenance Notes: 

    For the biggest, most abundant blooms and strongest stems, plant where it gets at least six hours of sun each day (warmer climates can get away with a bit less). A good layer of shredded bark mulch helps minimize water loss.

    As for pruning, cut the entire plant back by about one-third its total height each spring, just as the new growth begins to emerge on stems. This serves to build up a strong, supportive, woody base while also encouraging abundant new growth for plenty of flowers. 

    If you wish to fertilize, an application of a rose fertilizer in early spring, once the soil has thawed, is sufficient. 

    Incrediball® Hydrangea arborescens 'Abetwo' USPP 20,571, Can 4,166
  • 49 Reviews

    Browse reviews from people who have grown this plant.
    • I purchase two of these about 3 months ago and they are already growing like crazy and have small blooms all over. Great plants!

      , California
      , United States
      , 1 week ago
    • One of my favorite hydrangeas, and I'm a hydrangea girl. I planted a couple to fill in some bare spots, and these have turned into some of my favorite plants. Like others have said, the blooms do fade from white to chartreuse, but I personally love the green color they fade to. Plus, the green "incrediballs" last for such a long time! I'm planning to buy at least three more to plant along side my roses.

      , Georgia
      , United States
      , 33 weeks ago
    • I have two of these in my garden. They first bloom white but then VERY quickly fade to light green, so my disappointment is with how long the blooms stay white. One is planted in full sun and one in partial sun, so the amount of sunlight doesn’t matter. As another reviewer said, they quickly fade. Also not all of the blooms are large, only a few. I wouldn’t buy this again.

      , North Carolina
      , United States
      , 42 weeks ago
    • I wish I could show a picture! Do you see that picture above of the hedge of incrediball hydrangeas? Did you think "that must be only in the best case scenario"? Because it's not! They will look like that, if you give them three years. I planted three of these in my front yard, in front of my porch. This location is not easy- it's full sun (every part of my yard is full sun, to be fair. Some just more full sun than others), little protection, etc. Now, I'm in zone 6, PA. Our summers can get warm (96 f) but we get decent rain. And for the first year, these burned and needed a lot of supplemental water. The second year they did a lot better despite the constant heat, but the branches bowed under medium sized flower heads. This third year? They exploded! Huge, beautiful flowers on sturdy stems at least 5 feet tall. I cut them back hard in the beginning of spring this year and yet they grew this tall and wide? Wow! I haven't needed to supplement water, either. Their large size help better shade the ground from the harsh summer sun (though they are mulched). Of all the plants in my front yard, these are the ones (besides tulips) that make people slow down and stare. They really are glamorous and command admiration. I'd do a huge hedge of these if I had the space. They bloom on new wood, so if they get winter killed to the ground or sat on (ahem, my dog), or you prune hard they will still bloom without a care in the world.

      , Pennsylvania
      , United States
      , 44 weeks ago
    • I purchased seven Incrediball hydrangeas a few weeks ago. These were planted on the south side of my house which is full sun. If I am lucky, one hydrangea might survive. The rest are nearly dead. Every leaf is shriveled up and wilted and all of the blooms are also wilted. This is not for lack of care on my part. The Proven Winners tag that came with the plant says the light exposure is "Sun". I am in Zone 5. I also did my research before purchasing these. This is right off of the Proven Winners website: "For the biggest, most abundant blooms and strongest stems, plant where it gets at least six hours of sun each day (warmer climates can get away with a bit less)." I did plant these where they get at least 6 hours of sun each day. So why are they dying? My guess would be because they are NOT FULL SUN HYDRANGEAS.

      , Illinois
      , United States
      , 47 weeks ago
    • We love these hydrangeas! We started with six at the edge of the front porch two summers ago. The two gallon plants were gorgeous the first year and already had huge blooms. The second summer we added eleven more from quart size pots. The quart size plants struggled a bit their first summer but have come back thriving in the their second summer. Two summers in, the quart pots look like they will fill in well and grow to 3-4 ft this year bearing multiple blooms. The plants from the two gallon pots (on their third summer) are magnificent. I pruned them back hard on fresh growth (not wood) in the early spring and they are now full, giant beasts at 4-5 ft tall. If they follow their bloom pattern from last summer, they will be utterly covered in blooms as big as my head. We had white to green blooms last summer that stayed gorgeous through September and added lovely winter interest when left on the stem. I adore these hydrangeas. Cars stop in front of the house to admire the show and ask us about them. I can’t imagine using other cultivars.

      , Pennsylvania
      , United States
      , 1 year ago
    • I planted a hedge of 4 of these along my deck. The plants were about 3 feet tall when I purchased them and had tons of blooms. The blooms that were on the plant when I bought them scorched but the new blooms that emerged after I planted were fine. I really love these plants and I am excited to see how they do this year in my garden. They grew about 2 feet already and I am waiting for them to bush out next year so I can have an actual hedge :)

      , Ontario
      , Canada
      , 2 years ago
    • I planted these in July 2016, zone 5b. They are on the north side of my home and thus do not get as much sun as I think they want. Despite that, they have grown quite large, about 5 ft tall and have bloomed well, large and prolific blooms. My dissatisfaction is with the color. I chose these because I wanted white hydrangeas. While they do bloom white, I think the blooms are white for about 2 weeks, maybe 3 before aging to a lime green and then they stay green for a long time. Is this caused by not getting enough sun or is this just how the plant performs? I can tell mine are stretching toward the sun and they do lean forward and droop with the weight of the blooms. I have followed PW's recommendation to prune down about 1/3 of the plant in the early spring. I am wondering if I prune harder if this will help size control and perhaps help with stronger stems. I"m also wondering if I were to move them to a sunnier location if they would stay white longer. PW - what hydrangeas have white blooms the longest? What hydrangeas tolerate the most shade? Thanks!

      , Wisconsin
      , United States
      , 2 years ago
    • I purchased this plant in August 2011 and planted it on the east side of my home. It receives no direct morning light, but there is reflected light off of my home in the a.m. and an hour or so of hot sun in the summer, but only on the top of the plant. It blooms profusely with more blooms each year! It’s approximately 6’ tall and 8’ wide. It’s easily the most beautiful flowering shrub I’ve ever grown!!

      , Washington
      , United States
      , 2 years ago
    • I planted 3 of these plants 6+ years ago. All grew notably each year and hit full size in about 3 years. The ones in full sun are very sensitive to water but doing better if you add a lot of mulch. None have ever bloomed anywhere close to the size advertised. Maybe 3-4”, relatively flat, not like a ball or giant like shown. Not the impressive look I hoped, especially for the price.

      , Washington
      , United States
      , 2 years ago
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