Plant Name

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Clematis armandii

Armandii Group

(Syn.
Clematis hedysarifolia subsp armandii,
Clematis biondiana'
Clematis armandii var biondiana,
Clematis meyeniana,
Clematis armandii 'Biondiana' )

Clematis armandii 'Snowdrift' with white flowers and Clematis 'Apple Blossom' whose flowers are tinted pink in the bud with its leaves being a bronzy-green are good species that can be grown on a South-facing wall. Like the Clematis armandii, they may reach a height of 20 feet in time and are lovely when their branching stems are covered in flowers. In warm countries the Armandii Clematis are often grown on trees and left untouched. On a wall in the UK, they will need support. The support can be 1" square timber on 12" squares trellis work separated by 3" from the wall, or wires stretched horizontally at intervals of 12 inches up the wall, after their diiagonal wires have been installed.

Grow in a Pot

Grow on Trellis or existing deciduous trees.

Soil

Humus-rich Sand with Chalk

Sun Aspect

Full Sun but tolerates Part Shade

Soil Moisture

Dry

Plant Type

Evergreen Climber

Height x Spread in feet

17-23 x 16

Foliage

Large, leathery evergreen foliage, bronze when young.

Flower Colour in Month(s). Fruit

"Scented, white or cream-white flowers, often becoming flushed with pink. Anthers cream or pale yellow. March-May" from Clematis on the Web.

Comment

"Note that some forms of armandii may be toxic to animals, especially dogs. Requires shelter from cold winds." from Clematis on the Web.

Normally the foliage should be in the Sun while the roots are kept cool in the shade and moist.

"All Clematis need a deep rich loam and they like lime. On thin soils, calcareous types included, they are a failure. Heavy clay is excellent if it is broken up and mixed with weathered ashes and leafmould. Dig the soil deeply and add plenty of old, well-rotted cow manure. The best time for planting is September and October, the preparation of the soil being done in the spring. The following March cut them back drastically to a bud witin 6 inches (15cm) of the base. This initial treatment of all types of Clematis encourages strong, healthy growth. Similarly, pinching out the tips of too vigorous shoots encourages them to branch and flower, but it should not be done later than June." from Climbing Plants and Some Wall Shrubs by Douglas Bartrum (Published by The Garden Book Club in 1968).

Plant the top of the rootball about 3" below the soil surface to reduce risk of clematis wilt, and water well.

Climbing Cultivation Group:-

Group 1 Early-flowering clematis. Prune after flowering to shorten stems to allotted space. This encourages new growth to flower in the following winter and early spring. Suitable for South, East or West facing on climbing trellis or wire support with well-drained soil.

Available from Roseland House Garden & Nursery.
Photographs by Roseland House Garden & Nursery.