Asao Clematis
Clematis ‘Asao’
Plant Details
USDA Plant Hardiness Zones: 4a-9b Find Your Zone
Plant Type: Flowering Vine
Height or Length at Maturity: 6-10′
Width at Maturity: 3-6′
Spacing: 4′ apart to cover fences and walls
Spacing: 4′ apart to cover fences and walls
Growth Habit / Form: Climbing, Twining
Growth Rate: Fast
Flower Color: Pink shades with White centers
Flower Type: Single
Flower Size: Enormous 7-9″ flowers!
Flowering Period: Late Spring to Early Summer and again in late Summer well into Fall
Flowering Period: Late Spring to Early Summer and again in late Summer well into Fall
Fragrant Flowers: No
Foliage Color: Green
Fragrant Foliage: No
Sun Needs: Full to Mostly Sun, Part Shade, All Day Lightly Filtered Sun
Water Needs: Average
Soil Type: Clay (Amend heavy clay to ensure good drainage), Loam, Sandy, Silt
Soil Drainage: Moist but Well Drained
Soil pH: 5.5 – 7.0
Maintenance / Care: Low
Pruning Group: 2
Attracts: Butterflies, Hummingbirds, Beneficial Pollinators, Visual Attention
Resistances: Deer, Disease, Heat, Humidity, Insect
Description
All of our 1 gallon pot Clematis vines are 2 year old plants on a trellis
One of the most stunning flowering vines in our gardens, and named as one of the Top 10 by the American Clematis Society, ‘Asao’ is a large-flowered Clematis displaying abundant, large, bold and showy two-toned bright pink flowers up to 8 inches across with each petal having a wide white bar down its center. Flowers can be single or double with overlapping petals surround a prominent tuft of yellow anthers. Truly spectacular in bloom from late spring through early summer and again in late summer through early fall. At 6 to 10 feet tall, depending on the height of the support structure, Asao is ideal for growing on arches, fences, rails, trellises, obelisks and posts, and is also suitable for containers.
Landscape & Garden Uses
Climbing 6 to 10 feet in height with a spread of 3 to 6 feet, the Asao Clematis is ideal for growing on fences, trellises, arches, tall obelisks, poles, lamp posts and other structures that its vines can twine around. Can also be grown in pots, planters and other containers for situating on patios, decks, porches and around other outdoor living spaces where the amazing flowers can be viewed and enjoyed from close up. A fine addition to Clematis gardens, butterfly and hummingbird gardens, and blue theme gardens.
Suggested Spacing: 4 feet apart to cover fences, trellises, and walls
Growing Preferences
The Asao Clematis is easy to grow in a moist but well-drained soil of average fertility and full sun to part shade. We suggest a minimum of 4 hours direct sunlight per day for best flowering and overall performance. Though it tolerates dry periods when established, it will appreciate an occasional watering in prolonged periods of dry weather. See pruning instructions just below.
Clematis Pruning Group 2
Clematis in Group 2 consist of all the early, large-flowered hybrid clematis that bloom in late spring or early summer and maybe again in late summer. Clematis in this group should be pruned lightly in late winter or early spring. Pruning consists of removing weak and crossing shoots then thinning down the plant to a structure of evenly spaced one and two year old stems. Cut each old stem just above a pair of healthy buds. Plants in this group have the tendency to become bare at the base as they mature. You can under-plant with small shrubs or perennials to help conceal the bare stems. Alternatively, you can often force a flush of new growth from the base by cutting the vine back to 18 inches immediately after the flush of bloom.
An alternate method of pruning Group 2 clematis is to prune only every three or four years. In this case, the clematis should be pruned as described for Group 3 Clematis. This will produce a weak first flush of flowers in the summer after pruning.
Helpful Articles
Click on the link below to find helpful advice from our experts on how to plant and care for Clematis vines
How To Plant A Clematis
How To Prune A Clematis
Plant Long & Prosper!
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