Geissorhiza radians

Fan Flower

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South African bulbous perennial featuring sword-shaped grey-green leaves and vibrant blue fan-like flowers in late winter to spring.
yard Outdoor plants wb_sunny Half-shade / Sun pets Not pet-safe
info

Plant Details

Common Name Fan Flower
Family Iridaceae
Genus Geissorhiza
Species Radians
Origin South Africa
Blooming Bulbous plant, blooms late winter to spring with blue flowers
Leaf Color Grey-green
Sunlight Half-shade / Sun
Category Outdoor plants
Pet Friendly close No
yard

Care & Maintenance

terrain
Soil

Well-draining sandy loam or bulb mix with added perlite for aeration

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Watering

Water regularly during active growth, allow soil to dry completely during summer dormancy to prevent corm rot

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Sunlight & Care

Prefers full sun to partial shade; requires bright light for optimal blooming and dormancy cycle

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Fertilization

Apply balanced liquid fertilizer monthly during growing season (Feb-Aug in Northern Hemisphere)

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Pruning

Remove spent flowers and allow foliage to yellow naturally before cutting back after dormancy

Pest Control Aphid Snail 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 3 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
50° – 82°
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)
3000 – 20000
Lux
Ambient illuminance level at the plant's surface
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Light (PAR)
400 – 1500
mmol/m²/s
Photosynthetically active radiation (PAR) intensity
water
Soil Moisture
20% – 50%
% 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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