Hydrangea macrophylla Magical Dynamite

Magical Dynamite Hydrangea

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Reblooming mophead hydrangea with dark green foliage and flowers changing from pink to blue based on soil pH. Cold hardy shrub.
yard Outdoor plants wb_sunny Half-shade / Sun pets Not pet-safe
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Plant Details

Common Name Magical Dynamite Hydrangea
Family Hydrangeaceae
Genus Hydrangea
Species Macrophylla
Variety Magical Dynamite
Origin Netherlands (Cultivar) / East Asia
Blooming Reblooms on old and new wood, summer to fall
Leaf Color Deep green
Sunlight Half-shade / Sun
Category Outdoor plants
Pet Friendly close No
yard

Care & Maintenance

terrain
Soil

Rich, peat-based mix with good drainage; pH 5.5-6.5 controls flower color (blue in acidic, pink in alkaline)

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Watering

Keep soil consistently moist but not waterlogged; high humidity preferred during summer heat

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Sunlight & Care

Morning sun with afternoon shade essential to prevent leaf scorching and bud burn

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Fertilization

Balanced slow-release fertilizer in spring; bloom booster before flowering cycle starts

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Pruning

Minimal pruning required; remove spent blooms after first flush, prune dead wood in late winter

Pest Control Aphid Scale Insect Slug Snail 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 5 months
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
eco Leaf Persistence 9 months
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
thermostat

Growing Parameters

thermostat
Temperature
5° – 90°
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)
5000 – 35000
Lux
Ambient illuminance level at the plant's surface
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Light (PAR)
1000 – 2800
mmol/m²/s
Photosynthetically active radiation (PAR) intensity
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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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