‘Diamond Ball’ Clematis

Zone: 4, 5, 6, 7, 8, 9 Exposure: Full Sun, Part Sun Height: 6-8' Width/Spread: 4-5'

Big flowers give your garden big appeal! Each rounded bloom on ‘Diamond Ball’ clematis reaches an average of 4.5 inches wide. Visible even when you’re driving by at 50 mph. It’s a prolific bloomer, starting in June through August, so you’ll plenty of time to enjoy its flowers and debate with your neighbors whether they’re very pale blue or white. Plant it on a trellis or fence for the best display.

Why grow ‘Diamond Ball’ clematis?

  • Impressive large flowers
  • Long bloom time
  • Easy care

Clematis habit icon


Light: Foliage needs to be exposed to a minimum of four hours of light. In cool, northern climates it will thrive in full sun. In warmer, southern climates it benefits from having a bit of afternoon shade. Anywhere it grows, it performs best when the soil surface above the roots is shaded. This can be with mulch or other plants.

Soil: Absolutely needs to be well draining. Prefers fertile soil that is neutral or a bit alkaline. If your soil leans acidic, you can apply a little lime and check again in a year.

Water: Average water needs, but really resents sogginess.

Fertilizing: Uses a lot of nutrients in a season. Apply a granular fertilizer in late winter/early spring when the soil is workable.

Pruning: Flowers on both old and new wood, so it is a very reliable bloomer. May be pruned back to 3′ in spring, but this isn’t necessary.

Botanical Name

Clematis 'Diamond Ball' PP#24,045, CBR#5158


4, 5, 6, 7, 8, 9

Flower Color

Blue, White

Foliage Color







Full Sun, Part Sun


Moist, Well-draining

Season of Interest



Containers, Specimen


Alkaline soil, Award winner, Disease resistant, Long blooming, Vine

Blooms on

Old wood, New wood

SKU: 15448 Categories: , ,

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Gardening Simplified magazine
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