From The Plant Encyclopedia
Armand Clematis, Evergreen Clematis
|Clematis armandii - Evergreen Clematis Vine|
|Category||Shrub, Vine, Perennial|
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- Cultivation: Low-Maintenance
- Light: Sun, Dappled, Part-Shade
- Soil: Rich
- pH: 7
- Moisture: Medium, Well-Drained
- Form: Vine
- Habit: Evergreen
- Flower: Large, Medium, Petals, White
- Fruit/Seed: Small
- Foliage: Leaves, Green
- Uses: Ornamental
Clematis armandii (also called Armand Clematis or Evergreen Clematis) is a flowering vine of the genus Clematis. Like many members of that genus, it is prized by gardeners for its showy flowers.
C. armandii bears fragrant 2.5-inch white flowers in spring on the previous year's growth. Its dark green leaves droop to create a textured look, and it serves well as a screen. Its leaf tips may burn badly if grown in salty soil or water. It is native to China; in the USA it grows best in American Horticultural Society zones 9 to 7, which are generally found in the southern USA.
Cultivars include the pink-flowerd 'Hendersonii Rubra' as well as 'Apple Blossom' and 'Snowdrift'.
Evergreen clematis (Clematis armandii) is somewhat ubiquitous in the Pacific Northwest where there are fewer truly evergreen vines to choose from than in more southerly climates. For a long time I evaded planting any because it was just too common in this zone. But I wanted a hardy evergreen vine for the alley-side of the garage wall, & I wanted it to be something that would filled the garage with pleasant scents coming through the paneless windows. It really seemed a good idea to let one of these rapid-growing vines climb right up to the roof of the garage then spill downard from up above. Lower on the wall had already been planted with summer-fragrant honeysuckles.
The evergreen clematis is in full beautiful bud in February then in amazing flower in March, continuing through April. Mild rebloom can be expected throughout summer. The flowers are brilliantly white stars that smell just wonderful.
This vine is best for zones 8 & 9, though with protection it might be fudged up or down into other zones. In hot climates or in climates with frequent freezes it is not apt to do well. For Puget Sound, however, it can be regarded as ultra-hardy.
It requires a very strong trellis, as it grows rapidly to twenty feet & won't stop there. It easily gets out of hand unless pruned every year after flowering. The vines will otherwise get thicker & woodier & build up layer upon layer, the underlayers looking like dead wood & rather unlovely. This is true only when the plant is well matured. The first few years it may not require much pruning. Young vines are prettiest, yet a leader can be chosen to permit it to grow into a trunk so that it leafs primarily over the roof of a shed, arbor, pergola, or garage. Its lower portion tends in time to be less pretty than overhead, which is partly why I only considered it for the alley. When the lower limbs of an old specimen are kept free of new vines, the lower wall can be reserved for smaller vines such as hybred deciduous clematis, annual morning glories, or honeysuckles.
It is a native to China, where it climbs high into trees & where it flowers only high above. It flourishes in full sun or part shade, but in nature the roots would be far below the treetops in full shade, & in gardens it does not want its root area directly in the sun.
Bloom mostly on old wood which means last years growth. They bloom early in the year.
Clematis armandii 'Apple Blossom' grows in soils ranging from a pH of 7 (neutral ranges from 6.6 to 7.5) to 8.5 (alkaline ranges from 8.1 to 8.5). It is adapted to chalk, clay loam, loam, loamy sand, sandy clay, sandy clay loam and sandy loam soils, and prefers high fertility.
This is a climbing plant has an ultimate height of 8m / 26.2ft and spread of 2.5m / 8.2ft. It can take 6-10 years to reach its ultimate height.
It has green leaves. They are trifoliate in shape.
A moderate pleasant scent is emitted from the flower. Vanilla scented.
Arbor or trellis, cottage informal garden, screen, wall side and fragrance.
Clematis armandii 'Apple Blossom' has green bark with a very rough texture.
Propagation techniques include cuttings and seed.