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Helianthus tuberosus (Jerusalem Artichoke)

Jerusalem Artichoke, Canada Potato, Earth Apple, Girasole, Indian Potato, Pignut, Sunchoke, Helianthus tomentosus

Helianthus tuberosus, Jerusalem Artichoke, Canada Potato, Earth Apple, Girasole, Indian Potato, Pignut, Sunchoke, Yellow Flowers, Yellow Perennials
Helianthus tuberosus, Jerusalem Artichoke, Canada Potato, Earth Apple, Girasole, Indian Potato, Pignut, Sunchoke, Yellow Flowers, Yellow Perennials

Helianthus tuberosus (Jerusalem Artichoke) is a showy perennial with broad, thick leaves and a profusion of attractive, brilliant flowers, 2-4 in. (5-10 cm), each with up to 10-20 bright yellow rays surrounding a darker yellow central disk. Produced in late summer to early fall, the blossoms are borne on stout, rough, branching stems. They are particularly attractive to birds as they love to eat the seeds directly from the seedheads.

Jerusalem Artichoke was an important food plant for native Americans. It is still grown today for the harvest of the tubers since they are highly nutritious and, unlike potatoes, contain no starch. Rich with an artichoke taste, the tubers may be eaten fresh or raw, boiled or roasted like potatoes.

Grown for its attractive and showy sunflowers or for its edible tubers, Jerusalem Artichoke is perfect for naturalized areas where it can spread to form colonies.

  • Typically grows up to 6-10 ft. tall (180-300 cm) and 3-5 ft. wide (90-150 cm). Will spread by rhizomes and self-seeding to form colonies. Once planted in the landscape, this herbaceous perennial is difficult to remove.
  • Prefers full sun or part shade in average, dry to medium, well-drained soils. However, this plant is not too fussy about soils and tolerates a wide range of conditions as long as there is good drainage. Drought tolerant, but performs best with consistent moisture. May need staking, particularly if grown in exposed locations.
  • Low maintenance, this is an excellent choice for vegetable gardens, cottage gardens, bird or butterfly gardens, wildflower gardens, prairies, and meadows.
  • Attractive to birds, and butterflies, it is deer resistant.
  • Plant tubers in the garden after last spring frost date or in fall after the first frost has occurred.
  • Native to North America

 

Learn How To Plant, Care and Grow Gorgeous Sunflowers

Cherished for their beauty, Sunflowers (Helianthus) are striking ornamental annuals or perennial plants grown for their colorful summer and fall blooms. Fast-growing, they can reward you with glamorous blooms between 55 and 100 days after planting. Here are some basic rules that need to be followed to enjoy their splendid flowers.


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Requirements

Hardiness 3 - 9
Climate Zones 1, 1A, 1B, 2, 2A, 2B, 3, 3A, 3B, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
Plant Type Perennials
Plant Family Compositae
Genus Helianthus
Exposure Full Sun, Partial Sun
Season of Interest Summer (Late)
Fall
Height 6' - 10'
(180cm - 3m)
Spread 3' - 5'
(90cm - 150cm)
Spacing 36" - 60"
(90cm - 150cm)
Maintenance Low
Water Needs Low, Average
Soil Type Chalk, Clay, Loam, Sand
Soil pH Acid, Alkaline, Neutral
Soil Drainage Moist but Well-Drained, Well-Drained
Characteristics Cut Flowers, Showy
Native Plants Alabama, Arkansas, Colorado, Connecticut, Delaware, Florida, Georgia, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maine, Maryland, Massachusetts, Michigan, Midwest, Minnesota, Mississippi, Missouri, Nebraska, New Hampshire, New Jersey, New York, North Carolina, North Dakota, Northeast, Ohio, Oklahoma, Oregon, Pacific Northwest, Pennsylvania, Rhode Island, Rocky Mountains, South Carolina, South Dakota, Southeast, Southwest, Tennessee, Texas, United States, Utah, Vermont, Virginia, Washington, West Virginia, Wisconsin, Wyoming
Tolerance Drought, Deer, Dry Soil, Rocky Soil
Attracts Birds, Butterflies
Garden Styles Informal and Cottage, Prairie and Meadow
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Alternative Plants to Consider

Helianthus decapetalus, Thinleaf Sunflower, Ten-Petaled Sunflower, Thin-leaved Sunflower, Pale Sunflower, Yellow Flowers, Yellow Perennials
Helianthus pauciflorus, Stiff Sunflower, Prairie Sunflower, Perennial Sunflower, Perennial Helianthus, Yellow Flowers, Yellow Perennials
Helianthus nuttallii, Nuttall's Sunflower, Yellow Flowers, Yellow Perennials
Helianthus angustifolius, Swamp Sunflower, Narrowleaf Sunflower, Narrow-leaved Sunflower, Helianthus angustifolius var. planifolius, Yellow Flowers, Yellow Perennials
Helianthus debilis, Beach Sunflower, Dune Sunflower, Cucumber-leaf Sunflower, Cucumberleaf Sunflower, Yellow Flowers, Yellow Annuals, Beach Flower
Helianthus divaricatus, Woodland Sunflower, Rough Sunflower, Helianthus divaricatus var. angustifolius, Yellow Flowers, Yellow Perennials
While every effort has been made to describe these plants accurately, please keep in mind that height, bloom time, and color may differ in various climates. The description of these plants has been written based on numerous outside resources.
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Requirements

Hardiness 3 - 9
Climate Zones 1, 1A, 1B, 2, 2A, 2B, 3, 3A, 3B, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
Plant Type Perennials
Plant Family Compositae
Genus Helianthus
Exposure Full Sun, Partial Sun
Season of Interest Summer (Late)
Fall
Height 6' - 10'
(180cm - 3m)
Spread 3' - 5'
(90cm - 150cm)
Spacing 36" - 60"
(90cm - 150cm)
Maintenance Low
Water Needs Low, Average
Soil Type Chalk, Clay, Loam, Sand
Soil pH Acid, Alkaline, Neutral
Soil Drainage Moist but Well-Drained, Well-Drained
Characteristics Cut Flowers, Showy
Native Plants Alabama, Arkansas, Colorado, Connecticut, Delaware, Florida, Georgia, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maine, Maryland, Massachusetts, Michigan, Midwest, Minnesota, Mississippi, Missouri, Nebraska, New Hampshire, New Jersey, New York, North Carolina, North Dakota, Northeast, Ohio, Oklahoma, Oregon, Pacific Northwest, Pennsylvania, Rhode Island, Rocky Mountains, South Carolina, South Dakota, Southeast, Southwest, Tennessee, Texas, United States, Utah, Vermont, Virginia, Washington, West Virginia, Wisconsin, Wyoming
Tolerance Drought, Deer, Dry Soil, Rocky Soil
Attracts Birds, Butterflies
Garden Styles Informal and Cottage, Prairie and Meadow
How Many Plants
Do I Need?
Learn Now
Explore Great Plant Combination Ideas
Helianthus
Guides with
Helianthus
Not sure which Helianthus to pick?
Compare Now

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