Gladiolus Thalia

Sword lily

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Tall cormous perennial featuring sword-shaped leaves and tall spikes of funnel-shaped flowers. Cultivar 'Thalia' typically displays white or pale blooms, prized for garden beds or cut arrangements.
yard Outdoor plants wb_sunny Sun pets Not pet-safe
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Plant Details

Common Name Sword lily
Family Iridaceae
Genus Gladiolus
Species Gladiolus
Variety Thalia
Origin Mediterranean / South Africa
Blooming Summer to Autumn, typically June-September
Leaf Color Green
Sunlight Sun
Category Outdoor plants
Pet Friendly close No
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Care & Maintenance

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Soil

Well-drained, fertile loam soil with high organic matter; avoid heavy clay.

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Watering

Water regularly during growth phase, allow to dry slightly between waterings. Reduce after flowering until dormancy.

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Sunlight & Care

Requires full sun exposure for optimal flowering and corm development

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Fertilization

Apply balanced liquid fertilizer every 2 weeks during active growth; bulb food at planting time.

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Pruning

Remove spent flower spikes after blooming. Cut foliage back to ground level in autumn before frost.

Pest Control Aphid Bulb Mite 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
agriculture Harvesting 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
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Growing Parameters

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Temperature
50° – 86°
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)
10000 – 60000
Lux
Ambient illuminance level at the plant's surface
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Light (PAR)
2000 – 4500
mmol/m²/s
Photosynthetically active radiation (PAR) intensity
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Soil Moisture
20% – 65%
% 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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