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Clematis Asao

Perfect for growing on a patio

A compact multi stemmed, deciduous climber adorned by large dark pink flowers with ruffled petals that has dark margins and a white bar in the centre and yellow stamen, this plant flowers freely in the spring. Divided into three wide or regular lance-shapes, the leaves look gorgeous in contrast with the flowers.


Looks wonderful on a patio, gazebos, fences, arbours, trees and growing up through roses and shrubs


Prefers well-drained soil that receives full sun or partial shade. 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.

Bred in Japan where it was raised by Mr Kasushige Ozawa. The name ‘Asao’ is derived in Japan which is a woman’s name there. 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 - August
Evergreen No
Plant height 240 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, Loam, Sand
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