Helianthus tuberosus

Jerusalem Artichoke / Sunchoke

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Perennial tuberous plant in the sunflower family, grown for edible knobby tubers and ornamental tall yellow blooms. Can be invasive.
yard Outdoor plants wb_sunny Half-shade / Sun pets Not pet-safe
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Plant Details

Common Name Jerusalem Artichoke / Sunchoke
Family Asteraceae
Genus Helianthus
Species Tuberosus
Origin North America
Blooming Summer to early autumn, yellow daisy-like flowers
Leaf Color Medium green
Sunlight Half-shade / Sun
Category Outdoor plants
Pet Friendly close No
yard

Care & Maintenance

terrain
Soil

Rich, well-drained loamy soil with organic matter for tuber development

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Watering

Moderate watering during establishment; drought tolerant once mature. Reduce before harvest.

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Sunlight & Care

Full sun is critical for optimal tuber yield and flowering height

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Fertilization

Balanced fertilizer at planting; avoid excess nitrogen to prevent foliage over tubers

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Pruning

Cut back dead stems in late autumn; dig up tubers after frost for winter storage

Pest Control Aphid Slug Sunflower Beetle

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 9 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% – 80%
% 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)
200 – 5000
mmol/m²/s
Photosynthetically active radiation (PAR) intensity
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Soil Moisture
20% – 70%
% volumetric
Water content in the growing medium
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Soil EC
300 – 1500
mS/cm
Electrical conductivity (nutrient concentration in soil water)

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