Gladiolus Amsterdam

Sword Lily

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Tall cormous perennial with sword-shaped leaves and vibrant flower spikes. 'Amsterdam' offers bold colors, ideal for cut gardens or summer borders.
yard Outdoor plants wb_sunny Half-shade pets Not pet-safe
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Plant Details

Common Name Sword Lily
Family Iridaceae
Genus Gladiolus
Species Hybridus
Variety Amsterdam
Origin South Africa / Netherlands
Blooming Summer, produces flower spikes on tall stalks
Leaf Color Grey-green
Sunlight Half-shade
Category Outdoor plants
Pet Friendly close No
yard

Care & Maintenance

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Soil

Well-drained sandy loam rich in organic matter

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Watering

Keep soil moist during growth, reduce after flowering. Avoid waterlogging corms.

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Sunlight & Care

Requires full sun exposure for optimal height and bloom intensity

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Fertilization

Apply balanced fertilizer at planting and when flower spikes emerge

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Pruning

Remove spent blooms to encourage further flowering; cut foliage back after yellowing for dormancy

Pest Control Aphid Fungus Gnat Slug 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
thermostat

Growing Parameters

thermostat
Temperature
50° – 86°
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)
3000 – 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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