Onion Hi Keeper F1

Hi Keeper Onion

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Robust F1 storage onion cultivar with high pungency and exceptional shelf life. Grown for bulbs in well-drained soil, resistant to bolting.
yard Kitchen garden plants wb_sunny Sun pets Not pet-safe
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Plant Details

Common Name Hi Keeper Onion
Family Amaryllidaceae
Genus Allium
Species Cepa
Variety Hi Keeper F1
Origin Netherlands/USA Hybrid
Blooming Grown for bulbs, rarely flowers in first year
Leaf Color Blue-green with white base
Sunlight Sun
Category Kitchen garden plants
Pet Friendly close No
yard

Care & Maintenance

terrain
Soil

Well-draining loamy soil, rich in organic matter, pH 6.0-7.5

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Watering

Consistent moisture during growth, reduce watering as bulbs mature to prevent rotting

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Sunlight & Care

Requires full sun exposure (6+ hours daily) for optimal bulb development

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Fertilization

Balanced NPK fertilizer at planting, switch to high potassium during bulbing stage

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Pruning

Remove flower stalks if seed production is not desired; harvest when tops fall over

Pest Control Aphid Onion Fly 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

agriculture Harvesting Period 3 months
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
eco Leaf Persistence 8 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% – 70%
% relative
Optimal relative air humidity the plant thrives in
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Light (LUX)
12000 – 45000
Lux
Ambient illuminance level at the plant's surface
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Light (PAR)
1500 – 5000
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 – 2500
mS/cm
Electrical conductivity (nutrient concentration in soil water)
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Common Problems

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