Alcea Formula Mixture

Hollyhock (Mixture)

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Alcea 'Formula Mixture' is a vibrant biennial hollyhock with tall spikes of large, ruffled flowers in mixed colors like reds and pinks. Thrives in full sun for vertical garden interest.
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Plant Details

Common Name Hollyhock (Mixture)
Family Malvaceae
Genus Alcea
Species Rosea
Variety Formula Mixture
Origin South Europe / Asia Minor
Blooming Summer to early autumn, biennial habit
Leaf Color Green, slightly hairy texture
Sunlight Sun
Category Outdoor plants
Pet Friendly check Yes
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Care & Maintenance

terrain
Soil

Well-drained, fertile loamy soil with good organic matter; tolerates poor soil but blooms better in rich mix.

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Watering

Water regularly during establishment and dry spells; drought tolerant once mature. Avoid overhead watering to prevent rust.

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Sunlight & Care

Requires full sun exposure for optimal growth and flowering; shade reduces bloom quality.

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Fertilization

Apply balanced slow-release fertilizer at planting time; avoid excess nitrogen which promotes foliage over flowers.

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Pruning

Deadhead spent blooms to encourage longer flowering season; cut back to ground level after first year (biennial habit).

Pest Control Aphid Japanese Beetle Leaf Miner Snail

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 3 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
23° – 95°
Fahrenheit
Ideal ambient air temperature range for healthy growth
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Humidity
30% – 70%
% relative
Optimal relative air humidity the plant thrives in
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Light (LUX)
10000 – 60000
Lux
Ambient illuminance level at the plant's surface
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Light (PAR)
900 – 2500
mmol/m²/s
Photosynthetically active radiation (PAR) intensity
water
Soil Moisture
20% – 65%
% volumetric
Water content in the growing medium
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Soil EC
450 – 1800
mS/cm
Electrical conductivity (nutrient concentration in soil water)

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