Jerusalem Artichoke (Tuberosus)

The Jerusalem Artichoke (Tuberosus) is generally described as a perennial forb/herb. This is native to the U.S. (United States) has its most active growth period in the spring and summer . The Jerusalem Artichoke (Tuberosus) has yellow-green foliage and inconspicuous yellow flowers, with a moderate amount of conspicuous brown fruits or seeds. The greatest bloom is usually observed in the late summer, with fruit and seed production starting in the summer and continuing until fall. Leaves are not retained year to year. The Jerusalem Artichoke (Tuberosus) has a moderate life span relative to most other plant species and a rapid growth rate. At maturity, the typical Jerusalem Artichoke (Tuberosus) will reach up to 9.8 feet high, with a maximum height at 20 years of 0 inches.

The Jerusalem Artichoke (Tuberosus) is easily found in nurseries, garden stores and other plant dealers and distributors. It can be propagated by seed, tubers. It has a moderate ability to spread through seed production and the seedlings have medium vigor. Note that cold stratification is not required for seed germination and the plant cannot survive exposure to temperatures below -43°F. has high tolerance to drought and restricted water conditions.

Plant Basics
Category
Growth Rate Rapid
General Type Forb/herb
Growth Period Spring, Summer
Growth Duration Perennial
Lifespan Moderate
Plant Nativity Native to U.S.
Commercial Availability Routinely Available
Physical Characteristics
Bloom Period Late Summer
Displays Fall Colors Yes
Shape/Growth Form Rhizomatous
Drought Tolerance High
Shade Tolerance Intermediate
Height When Mature 9.8
Vegetative Spread Rapid
Flower Color Yellow
Flower Conspicuousness Yes
Fruit/Seed Abundance Medium
Fruit/Seed Seasonality Summer Fall
Seed Spread Rate Moderate
Gardening Characteristics
Propagations (Ways to Grow) Seed, Tubers
Moisture Requirements Low
Cold Stratification Required No
Minimum Temperature -43
Soil Depth for Roots 6
Toxic to Nearby Plants No
Toxic to Livestock No
After-Harvest Regrowth Rate Slow
After-Harvest Resprout Ability No
Responds to Coppicing No
Growth Requirements
pH Range 4–7 pH
Precipitation Range 15–15 inches/yr
Planting Density 4800–10912 indiv./acre
Soil Textures Coarse, Medium
Soil Depth for Roots 6
Minimum Frost-Free Days 100 day(s)
Salinity Tolerance Low
CaCO3 Tolerance Medium
Sustainability & Use
Leaf Retention No
Palatability High
Fire Resistant No
Causes Livestock Bloating None

Source: USDA, NRCS, PLANTS Database, plants.usda.gov.
National Plant Data Center, Baton Rouge, LA 70874-4490 USA