Hydrangea serrata

Mountain Hydrangea

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Mountain hydrangea, a deciduous shrub with serrated leaves and blooms that turn blue in acidic soil. Native to Japan and Korea.
yard Outdoor plants wb_sunny Shade / Half-shade pets Not pet-safe
info Pot sizes shown are estimations. Real dimensions may vary depending on the merchant.
Merchant Pot Size Availability Price
Amazon.com - In Stock $29.95 Buy
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Plant Details

Common Name Mountain Hydrangea
Family Hydrangeaceae
Genus Hydrangea
Species Serrata
Origin Japan / Korea
Blooming Late spring to summer, flowers fade as heat increases
Leaf Color Serrated dark green
Sunlight Shade / Half-shade
Category Outdoor plants
Pet Friendly close No
yard

Care & Maintenance

terrain
Soil

Rich, well-draining acidic soil mixed with peat moss and perlite

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Watering

Keep soil consistently moist but not waterlogged. Reduce watering significantly in winter dormancy

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Sunlight & Care

Morning sun, afternoon shade. Avoid scorching midday heat to prevent leaf scorch

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Fertilization

Apply balanced fertilizer in spring before blooming. Add aluminum sulfate for blue flowers in alkaline soil

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Pruning

Prune after flowering to remove dead wood, avoid cutting new growth buds or you will lose next year's blooms

Pest Control Aphid Mealybug 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 2 months
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
eco Leaf Persistence 8 months
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
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Growing Parameters

thermostat
Temperature
41° – 82°
Fahrenheit
Ideal ambient air temperature range for healthy growth
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Humidity
60% – 85%
% relative
Optimal relative air humidity the plant thrives in
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Light (LUX)
2000 – 10000
Lux
Ambient illuminance level at the plant's surface
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Light (PAR)
800 – 2500
mmol/m²/s
Photosynthetically active radiation (PAR) intensity
water
Soil Moisture
40% – 70%
% volumetric
Water content in the growing medium
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Soil EC
300 – 1200
mS/cm
Electrical conductivity (nutrient concentration in soil water)
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Common Problems

Something wrong with your Hydrangea serrata? Select a symptom to diagnose and fix the issue.

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