Clematis x 'Multi-blue'
Common Name(s):
Multi-Blue Clematis
Multi blue Double Flowering Clematis
Synonym:
Clematis x hybrida multi blue
Flower:
Blue
Blooms :
Jun
to:
Sep
Large, double lavender-blue blooms. Repeat flowering; showy flowers
Botanical Description
Fragrant?
NO
Family:
Ranunculaceae
Vine
Foliage:
Green
Leaves opposite, usually compound, but sometimes simple at stem tips; leaflets 2.5-10 cm long and 1-2 cm wide, ovate with entire margins.
Fall Color?
NO
Deciduous
Photo by:
Heading 6
Oregon Native?
NO
West State Native?
NO
Origins:
Native to China and then cultivated in Japan
Site Selection
Minimum USDA Hardiness Zone:
4
Water Needs:
M
Sun Needs:
Partial Sun
Deer Resistant?
YES
Firewise?
NO
Height:
6-8'
Spread:
3-4'
Growth Rate:
Fast
Native Habitat:
Cultivar so has no native habitat
Soil:
Prefers well-drained, organic, moist soil.
Care Recommendations
Maintenance Level:
Medium
Fertilizer:
Needs a low-nitrogen, high phosphorous fertilizer applied early spring
Mulch:
Mulch 2-4" around base of plant to keep roots cool
Shade the roots with a ground cover or mulch, give consistent moist soil, fertilize, deadhead immediately after first bloom
Long Term:
Winter:
Pruning should be completed in late winter or early spring when buds begin to swell but
stems have not yet started to grow. Prune out
any weak and dead stems, and cut back
remaining stems to a pair of strong, healthy
buds. How far back you cut the stems will be
determined by your use. This group will often
flower on new wood again in late summer
or fall.
Spring:
Snip vines back to a pair of healthy buds about 1' above ground, remove dead or damaged stems
Summer:
These vines flower mostly in sprays along one-year-old or two-year-old branches. Cut off spent flowering branches immediately after flowering. This will help to produce the maximum amount of vigorous flowering wood and preserve the plant's natural growth
Fall:
Avoid heavy pruning, mulch base with 2-4" layer if organic mulch or shredded leaves, clean up debris, secure vine to trellis, fence, or support structure
General Care Comments:
Give partial shade, in early spring, cut back stems to a strong pair of buds about 6-12" above ground, clean away dead or diseased stems, snip off faded flowers, apply thick mulch around base, needs rich, well-drained neutral to slightly alkaline soil
Common Problems
Poor drainage
Diseases:
Susceptible to wilt/stem rot (can be fatal), powdery mildew, leaf spots, rust and viruses.
Insects:
Potential insect pests include aphids, vine weevils, and earwigs. Watch for spider mites
Environmental Problems:
Over watering, excessive sunlight
Pests:
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