Dietes iridioides

African Iris, Fortnight Lily

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Evergreen perennial with strap-like leaves and butterfly-shaped yellow flowers. Hardy, drought-tolerant once established.
yard Outdoor plants wb_sunny Half-shade / Sun pets Pet Friendly
info Pot sizes shown are estimations. Real dimensions may vary depending on the merchant.
Merchant Pot Size Availability Price
Amazon.com 1-2 in Out of Stock $14.99 Buy
Merchant Pot Size Availability Price
Amazon.com 7-8 in In Stock $49.97 Buy
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Plant Details

Common Name African Iris, Fortnight Lily
Family Iridaceae
Genus Dietes
Species Iridioides
Origin South Africa
Blooming Spring to Summer, sometimes twice a year
Leaf Color Dark green
Sunlight Half-shade / Sun
Category Outdoor plants
Pet Friendly check Yes
yard

Care & Maintenance

terrain
Soil

Well-draining loamy soil, rich in organic matter.

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Watering

Moderate watering during growth season. Allow topsoil to dry between waterings. Reduce in winter.

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Sunlight & Care

Prefers full sun but tolerates partial shade. In summer heat, afternoon shade is beneficial.

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Fertilization

Apply balanced liquid fertilizer monthly during growing season (Spring/Summer).

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Pruning

Remove spent flowers and old leaves at base to maintain tidy appearance.

Pest Control Aphid Mealybug 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 6 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° – 95°
Fahrenheit
Ideal ambient air temperature range for healthy growth
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Humidity
40% – 75%
% relative
Optimal relative air humidity the plant thrives in
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Light (LUX)
2000 – 15000
Lux
Ambient illuminance level at the plant's surface
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Light (PAR)
1000 – 2500
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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