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Clematis Duchess of Edinburgh

Fully double flowers throughout summer

An old variety with pom pom-like, fully double, white flowers. Still one of the best white Clematis. The fat buds begin opening greenish-white and soon change to frilly blooms of pure glowing-white. Early summer flowering, with a fresh crop of flowers in September.


Happy in sun or part shade. Plant in a spot where the plant can climb over a wall or fence, or through a shrub or tree.


Plant in a moist, fertile, well-drained soil. Add goodness to the soil by digging in planting compost. Clematis like their roots kept cool so if they are not in the shade, cover the soil with slate or stone chippings. If in a container, water frequently and liquid feed each week through the summer. In the first year after planting prune back hard to approximately one foot above ground level leaving two or three healthy buds. On established plants prune back to approximately five feet in the winter or early spring before the plant starts to grow then again lightly just after flowering to encourage a second flush of flowers.

Pruning Group 2.

Plant details

In depth plant information

Property Value
Plant type Clematis, Climber
Flower colour
Foliage colour
Typically available March - September
Season of interest Spring, Summer
Flowering March - June
Evergreen No
Plant height 230 cm - 300 cm
Plant width 165 cm - 200 cm
Fragrant flowers No
Attracts bees No
Attracts butterflies No
Plant height in 5 years 180 cm
Hardiness zone (?) H4

Will perform best in these conditions

Property Value
Soil type Chalk, Clay, Sand, Loam
Light exposure Full sun, Part shade
Soil drainage Well drained, Medium
Planting instructions

Water the plant in its pot thoroughly before planting – give it a good soaking. Prepare the area by digging a hole twice the size of the pot at least 15cm away from the wall, fence or support. Dig compost into the base of the hole. Remove the pot and position the plant – along with its supporting cane in the hole, leaning onto the support. The top of the rootball needs to be 8cm below the level of the surrounding soil. Refill the planting hole with a mixture of garden soil and compost, firming as you go. Arrange and tie the stems onto the support. Water in well and keep well watered during the plant's first year. Mulch with bark chippings or stones to keep the roots cool.

Planting site Patio container

Typically available

From March to September