Dahlia

Dahlia

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Tuberous perennial known for vibrant, multi-petaled blooms; foliage is bipinnate and fern-like. Primarily a seasonal outdoor plant.
yard Outdoor plants wb_sunny Sun 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 - Out of Stock $39.77 Buy
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Plant Details

Common Name Dahlia
Family Asteraceae
Genus Dahlia
Species Dahlia
Origin Mexico
Blooming Summer to Frost, depending on cultivar and climate
Leaf Color Dark green to bronze
Sunlight Sun
Category Outdoor plants
Pet Friendly close No
yard

Care & Maintenance

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Soil

Rich, well-draining loam or potting mix with perlite; tubers require excellent drainage to prevent rot

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Watering

Water deeply when soil surface is dry. Reduce watering after flowering stops. Keep tubers dry during winter dormancy

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Sunlight & Care

Requires full sun exposure (6+ hours) for optimal blooming; protect from scorching midday heat in extreme climates

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Fertilization

Apply high-potassium fertilizer weekly during active growth and blooming period; stop fertilizing before first frost

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Pruning

Deadhead spent flowers regularly to encourage new blooms; cut foliage back to ground level after first hard frost

Pest Control Aphid Slug Spider Mite Thrip

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 12 months
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
thermostat

Growing Parameters

thermostat
Temperature
41° – 95°
Fahrenheit
Ideal ambient air temperature range for healthy growth
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Humidity
40% – 70%
% relative
Optimal relative air humidity the plant thrives in
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Light (LUX)
30000 – 60000
Lux
Ambient illuminance level at the plant's surface
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Light (PAR)
10 – 25
mmol/m²/s
Photosynthetically active radiation (PAR) intensity
water
Soil Moisture
20% – 60%
% volumetric
Water content in the growing medium
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Soil EC
300 – 1800
mS/cm
Electrical conductivity (nutrient concentration in soil water)
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Common Problems

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

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