Alcea Carmine Roset

Carmine Roset Hollyhock

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Tall biennial with large red/pink flowers, ideal for vertical garden accents. Known for hardiness and cottage charm, requires full sun.
yard Outdoor plants wb_sunny Sun pets Pet Friendly
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Plant Details

Common Name Carmine Roset Hollyhock
Family Malvaceae
Genus Alcea
Species Rosea
Variety Carmine Roset
Origin Europe / Mediterranean
Blooming Summer and early autumn
Leaf Color Grey-green, hairy leaves
Sunlight Sun
Category Outdoor plants
Pet Friendly check Yes
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Care & Maintenance

terrain
Soil

Rich, well-drained loamy soil; tolerates poor soil but thrives in fertile conditions.

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Watering

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

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Sunlight & Care

Full sun required for maximum blooming; tolerate partial shade in hot climates.

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Fertilization

Apply balanced granular fertilizer in early spring before flowering cycle begins.

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Pruning

Deadhead spent flowers to encourage blooms or cut back completely after flowering as it is a biennial.

Pest Control Aphid Japanese Beetle Slug 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 4 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
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Growing Parameters

thermostat
Temperature
5° – 95°
Fahrenheit
Ideal ambient air temperature range for healthy growth
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Humidity
20% – 85%
% relative
Optimal relative air humidity the plant thrives in
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Light (LUX)
25000 – 70000
Lux
Ambient illuminance level at the plant's surface
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Light (PAR)
1800 – 2500
mmol/m²/s
Photosynthetically active radiation (PAR) intensity
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Soil Moisture
25% – 70%
% volumetric
Water content in the growing medium
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Soil EC
300 – 1500
mS/cm
Electrical conductivity (nutrient concentration in soil water)

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