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The Plant Guide

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Peegee hydrangea

Hydrangea paniculata 'Grandiflora'

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Large, sometimes giant white flower heads reaching 6 to 18 inches long turn pinkish with age. ‘Grandiflora’ is a fast-growing shrub that can reach 25 feet tall. Hydrangea paniculata is one of the most cold-hardy species. It may be grown as a single-stemmed tree specimen or as a multi-stemmed shrub.

Noteworthy CharacteristicsFlowers are good for cutting and drying. These shrubs may be used for hedging.

CareGrow in moist, but well-drained soil, in sun to partial shade. Blooms on current season's wood; may be cut back to a few buds to form a framework in spring to produce larger flowers, or alternately, allow to grow with minimal pruning.

PropagationSow seed in a cold frame in spring; take softwood cuttings in early summer, hardwood cuttings in winter.

ProblemsGray mold, slugs, powdery mildew, rust, ringspot virus, leaf spots.

  • Genus : Hydrangea
  • Plant Width : 10 to 15 feet
  • Plant Height : 15 to 30 feet
  • Zones : 3, 4, 5, 6, 7, 8
  • Growth Rate : Fast
  • Tolerance : Frost Tolerant
  • Light : Full Sun to Partial Shade
  • Maintenance : Low
  • Moisture : Medium Moisture
  • Flower Color : Pink, White
  • Characteristics : Showy Seed Heads
  • Plant Type : Shrubs
  • Bloom Time : Summer
  • Plant Seasonal Interest : Summer Interest
View Comments


  1. colleenboerner 08/14/2015

    HI all. I recently bought what i think is a Panicle Hydrangea. It was doing really well for weeks since I bought it, it even has a flower. It's still young, i have it in a pot right now.
    Here's my problem. about 2 weeks ago the leaves became quiet sad, drooping as though dehydrated. I've been watering it regularly, have it sitting on my back porch where it gets morning sun and afternoon shade.
    Can anyone help me figure out what the heck is going on? All my other plants are doing great. I'm at a loss

    1. madcosta 08/18/2015

      You may want to try "garden forum " And ask the question. Many users on that site have experience with this particular plant. Also, they may have a forum specifically on hydrangeas.

  2. colleenboerner 08/14/2015

    Here's a couple pictures

  3. barbara_casper 07/09/2017

    PG leafed out, but very little new growth and no flower buds. What's wrong?

    1. beverlytiding 07/14/2017

      My PG Limelight blooms late summer and has seemed to only get buds just before blooming. I have no buds yet either but expect some in a couple of weeks.. Have had these 3 seasons not counting this year and always eventually come through.
      Pruned them early winter this time to get a tree form and to prevent branches dragging the ground.
      Did get a lot of new growth unlike what you are describing. If your plant is only from last season, it may still be generating its root system since being transferred from the pot, instead of making a lot of new top growth.
      Boston, MA area.

  4. sheilagibsonbrown 08/05/2017

    Mine is huge this year with blooms as big as my head!

  5. User avater
    AngelaTHadden 10/24/2018

    superb flower

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