Mammillaria bombycina

Cotton Cactus

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Small globular cactus with dense white woolly spines and pink flowers in spring. Native to Mexico.
yard Succulents plants wb_sunny Sun pets Not pet-safe
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Plant Details

Common Name Cotton Cactus
Family Cactaceae
Genus Mammillaria
Species Bombycina
Origin Mexico
Blooming Pink to magenta flowers in spring/summer ring around apex.
Leaf Color Grey-green stems with white spines
Sunlight Sun
Category Succulents plants
Pet Friendly close No
yard

Care & Maintenance

terrain
Soil

Cactus mix with pumice and perlite. Excellent drainage essential to prevent root rot.

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Watering

Water sparingly during active growth (spring/summer), keep dry in winter dormancy to prevent rot.

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Sunlight & Care

Full sun exposure preferred for compact growth and flowering; protect from scorching midday in extreme heat.

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Fertilization

Diluted cactus fertilizer monthly during growing season, stop in autumn/winter.

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Pruning

Remove dead spines or rot; no major pruning required.

Pest Control Mealybug Scale 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 12 months
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
thermostat

Growing Parameters

thermostat
Temperature
41° – 100°
Fahrenheit
Ideal ambient air temperature range for healthy growth
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Humidity
20% – 60%
% relative
Optimal relative air humidity the plant thrives in
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Light (LUX)
3000 – 60000
Lux
Ambient illuminance level at the plant's surface
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Light (PAR)
1200 – 2500
mmol/m²/s
Photosynthetically active radiation (PAR) intensity
water
Soil Moisture
10% – 35%
% volumetric
Water content in the growing medium
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Soil EC
350 – 1500
mS/cm
Electrical conductivity (nutrient concentration in soil water)
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Common Problems

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

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