Helianthus tuberosus
TAXONOMY
FamilyAsteraceae
GenusHelianthus
Zone3
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Helianthus tuberosus, commonly known as Jerusalem artichoke or sunchoke, is a tuberous perennial plant in the Asteraceae family. Native to central North America, it is known for its edible tubers which are often used as a root vegetable. The plant produces tall, sunflower-like blooms and is well-suited to temperate climates.
ALSO KNOWN AS
Jerusalem Artichoke
Helianthus serotinus
Helianthus tomentosus
Helianthus tuberosus f. tuberosus
Helianthus tuberosus var. subcanescens
OVERVIEW
VPDCalculate
WaterMoist
SoilLoamy
LightDirect Bright (6 Hours)
Temperature20° C
Humidity60%
GDD1,800
Dormancy4 Months
pH6.5
Pressure1,013 mbar
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DETAILS
Care Instructions
Helianthus tuberosus thrives in full sun and requires moderate temperatures. It prefers soil that dries out partially between waterings and benefits from consistent moisture during the growing season. The plant can tolerate a range of humidity levels but prefers moderate humidity.Harvest
Helianthus tuberosus, commonly known as Jerusalem artichoke, is typically ready for harvest in late fall, after the first frost has killed the foliage. To harvest, carefully dig around the base of the plant to avoid damaging the tubers. Tubers can be harvested as needed throughout the winter, as they store well in the ground. Ensure to handle the tubers gently to prevent bruising, and store them in a cool, dark place if not used immediately. It's also important to note that the plant can be invasive, so manage the spread by harvesting thoroughly.Soil
This plant prefers well-draining loamy soil with a slightly acidic to neutral pH. It can tolerate a variety of soil types but performs best in nutrient-rich soil. Good drainage is essential to prevent tuber rot.Fertilizer
A balanced fertilizer with an N-P-K ratio of 10-10-10 is recommended. Fertilize the plant at the beginning of the growing season and again mid-season to support healthy growth and tuber development.Repotting
Repotting is generally not necessary for Helianthus tuberosus as it is typically grown outdoors. However, if grown in containers, repot in early spring before new growth begins. Ensure the new container is large enough to accommodate the tubers.Propagation
Helianthus tuberosus is easily propagated by dividing the tubers. This is best done in early spring or late fall. Simply dig up the tubers, separate them, and replant them in well-prepared soil.Pruning
Pruning is beneficial to control the height and spread of the plant. Cut back the stems after flowering to encourage new growth and prevent the plant from becoming too leggy. Remove any dead or damaged foliage as needed.Toxicity
Helianthus tuberosus is not toxic to pets or humans. The tubers are edible and often used in cooking. However, some individuals may experience digestive discomfort if consumed in large quantities.Additional
Helianthus tuberosus can be invasive in some areas due to its vigorous growth and ability to spread through its tubers. Regular monitoring and management may be necessary to prevent it from overtaking other plants in the garden.REVOLUTIONIZE YOUR PLANT CARE
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