Aquilegia flabellata

Japanese Fan Columbine

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A stunning perennial native to Japan featuring unique fan-shaped petals in blue or purple hues. Deciduous foliage with deep lobes, prefers cool moist soil and partial shade during summer heat.
yard Outdoor plants wb_sunny Shade / Half-shade pets Not pet-safe
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Plant Details

Common Name Japanese Fan Columbine
Family Ranunculaceae
Genus Aquilegia
Species Flabellata
Origin Japan, Korea
Blooming Late spring to early summer, often reblooms lightly in fall
Leaf Color Grey-green to blue-green
Sunlight Shade / Half-shade
Category Outdoor plants
Pet Friendly close No
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Care & Maintenance

terrain
Soil

Rich, humus-rich, well-drained soil; tolerates clay but prefers loam

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Watering

Keep soil consistently moist during active growth; drought tolerance is low, reduce watering after flowering when foliage dies back

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Sunlight & Care

Full sun to partial shade; requires afternoon shade in hot climates to prevent scorching

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Fertilization

Apply balanced slow-release fertilizer in early spring before new growth emerges

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Pruning

Deadhead spent flowers to encourage rebloom and prevent self-seeding. Cut back foliage completely after it yellows in late summer

Pest Control Aphid Leaf Miner Slug Snail

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 2 months
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
eco Leaf Persistence 12 months
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
thermostat

Growing Parameters

thermostat
Temperature
5° – 86°
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)
10000 – 30000
Lux
Ambient illuminance level at the plant's surface
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Light (PAR)
2000 – 4500
mmol/m²/s
Photosynthetically active radiation (PAR) intensity
water
Soil Moisture
20% – 70%
% volumetric
Water content in the growing medium
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Soil EC
300 – 1500
mS/cm
Electrical conductivity (nutrient concentration in soil water)

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