Alnus incana Laciniata

Cut-leaf Alder

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Deciduous shrub with finely cut, lacy leaves. Nitrogen-fixing. Hardy temperate species suitable for water gardens or large landscapes.
yard Outdoor plants wb_sunny Half-shade / Sun pets Not pet-safe
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Plant Details

Common Name Cut-leaf Alder
Family Betulaceae
Genus Alnus
Species Incana
Variety laciniata
Origin Europe / Northern Asia
Blooming Spring catkins (male and female)
Leaf Color Green, turning yellow in autumn
Sunlight Half-shade / Sun
Category Outdoor plants
Pet Friendly close No
yard

Care & Maintenance

terrain
Soil

Moist, fertile loam; tolerates clay and wet conditions.

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Watering

High water tolerance; keep soil consistently moist during establishment.

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Sunlight & Care

Full sun for best color and growth; partial shade tolerated.

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Fertilization

Low requirement; benefits from nitrogen fixation by root nodules.

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Pruning

Prune in late winter to maintain shape or control height.

Pest Control Aphid Caterpillar Scale Insect

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
-4° – 95°
Fahrenheit
Ideal ambient air temperature range for healthy growth
water_drop
Humidity
20% – 90%
% relative
Optimal relative air humidity the plant thrives in
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Light (LUX)
3000 – 40000
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
30% – 80%
% volumetric
Water content in the growing medium
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Soil EC
200 – 1500
mS/cm
Electrical conductivity (nutrient concentration in soil water)

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