Clematis macropetala

Large-flowered Clematis / Siberian Bluebell

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Hardy deciduous climbing vine with large nodding blue/violet bell-shaped flowers in early spring. Prefers cool roots and sunny tops.
yard Outdoor plants wb_sunny Shade / Sun pets Not pet-safe
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Plant Details

Common Name Large-flowered Clematis / Siberian Bluebell
Family Ranunculaceae
Genus Clematis
Species Macropetala
Origin Siberia, Northern China, Korea
Blooming Early spring to late spring, sometimes repeat bloomers in summer
Leaf Color Dark green
Sunlight Shade / Sun
Category Outdoor plants
Pet Friendly close No
yard

Care & Maintenance

terrain
Soil

Well-draining, fertile loam rich in organic matter. Mulch heavily to keep roots cool.

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Watering

Regular watering during growth season to keep soil consistently moist but not waterlogged. Reduce in winter dormancy.

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Sunlight & Care

Foliage needs sun for flowering; roots require shade or mulch to stay cool and moist.

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Fertilization

Apply balanced fertilizer early spring before flowering. Avoid high nitrogen late summer to prevent frost damage.

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Pruning

Group 2 pruning: Light prune after first flush of flowers (late winter/early spring) to shape and remove dead wood.

Pest Control Aphid Leaf Miner Slug Spider Mite

These are the insects and pathogens that commonly interact with this plant, including pests, parasites, and organisms typically associated with its care.

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Seasonal Periods

local_florist Flowering Period 3 months
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
eco Leaf Persistence 10 months
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
thermostat

Growing Parameters

thermostat
Temperature
41° – 95°
Fahrenheit
Ideal ambient air temperature range for healthy growth
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Humidity
40% – 80%
% relative
Optimal relative air humidity the plant thrives in
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Light (LUX)
2000 – 30000
Lux
Ambient illuminance level at the plant's surface
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Light (PAR)
1000 – 2500
mmol/m²/s
Photosynthetically active radiation (PAR) intensity
water
Soil Moisture
25% – 70%
% volumetric
Water content in the growing medium
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Soil EC
300 – 1800
mS/cm
Electrical conductivity (nutrient concentration in soil water)

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