Kalmia angustifolia

Sheep Laurel

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Evergreen shrub with lanceolate leaves and clusters of pink/white urn-shaped flowers. Toxic if ingested due to grayanotoxins.
yard Outdoor plants wb_sunny Shade / Half-shade pets Not pet-safe
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Plant Details

Common Name Sheep Laurel
Family Ericaceae
Genus Kalmia
Species Angustifolia
Origin Eastern North America
Blooming Late spring to early summer, clusters of flowers
Leaf Color dark green
Sunlight Shade / Half-shade
Category Outdoor plants
Pet Friendly close No
yard

Care & Maintenance

terrain
Soil

Acidic peat-based mix with perlite or pine bark for drainage and aeration

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Watering

Keep soil consistently moist but not waterlogged. Use rainwater or distilled to avoid alkalinity stress

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Sunlight & Care

Prefers cool conditions, dappled light or morning sun; intense afternoon heat causes leaf scorch

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Fertilization

Feed with ericaceous acid fertilizer in spring only; avoid over-fertilizing sensitive roots

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Pruning

Prune lightly after flowering to maintain shape; remove dead wood in late winter

Pest Control Leafhopper Scale Insect Spittlebug

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° – 79°
Fahrenheit
Ideal ambient air temperature range for healthy growth
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Humidity
40% – 75%
% relative
Optimal relative air humidity the plant thrives in
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Light (LUX)
500 – 8000
Lux
Ambient illuminance level at the plant's surface
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Light (PAR)
400 – 1200
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 – 1200
mS/cm
Electrical conductivity (nutrient concentration in soil water)

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