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Inula helenium (Elecampane)

Elecampane, Allicampane, Elf Dock, Else Dock, Elf Wort, Enula Campana, Horse Elder, Horse Heal, Scabwort, Wild Sunflower, Yellow Starwort

Inula helenium, Elecampane,  Allicampane, Elf Dock, Else Dock, Elf Wort, Enula Campana, Horse Elder, Horse Heal, Scabwort, Wild Sunflower, Yellow Starwort, Yellow Flowers

Magnificent in flower, Inula helenium (Elecampane) is a robust, upright perennial boasting sunflower-like blossoms, 2-3 in. across (5-9 cm), from mid-summer to early fall. Usually clustered in groups of 2-3 flowers, each flower features a dark center disc surrounded by scraggly yellow rays. They are borne on tall stems clad with hairy ovate leaves. The toothed, narrowly elliptic, basal leaves can reach 3 ft. in length (90cm), although 1-2 ft. (30-60 cm) is more common. Held on long petioles, up to 1 ft. (30 cm), they provide interest when the plant in not in bloom. Known for its many health benefits and high therapeutic value, Inula helenium is also impressive in the garden, becoming the star of the border during its blooming season. 

  • Grows up to 3-6 ft. tall (90-180 cm) and 2-3 ft. wide (60-90 cm). May require staking if planted in windy situation.
  • Enjoys full sun or part shade in deep, rich, moist well-drained soils.
  • Provides a lovely vertical accent in the garden. Very useful and adaptable, it is well suited for beds and borders, cottage gardens, wildlife gardens, prairies and meadows.
  • Generally pest and disease free.
  • Trim back faded foliage in the autumn or early spring.
  • Propagate by division in autumn or spring. Take basal softwood cuttings in spring. Propagate by seed in spring; germinate at 50°F (10°C).
  • Native to Eurasia.
  • Find where this species is invasive in the United States.
  • Discover beautiful U.S. native plant alternatives.

Requirements

Hardiness 3 - 7
Plant Type Perennials
Plant Family Compositae
Common names Wild Sunflower, Elecampane
Exposure Full Sun, Partial Sun
Season of Interest Summer (Mid, Late), Fall
Height 3' - 6' (90cm - 180cm)
Spread 2' - 3' (60cm - 90cm)
Spacing 36" (90cm)
Maintenance Low
Water Needs Average
Soil Type Clay, Loam
Soil pH Acid, Alkaline, Neutral
Soil Drainage Moist but Well-Drained
Characteristics Showy
Native Plants United Kingdom
Attracts Butterflies
Garden Uses Beds And Borders
Garden Styles Prairie and Meadow, Informal and Cottage
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Recommended Companion Plants

Verbascum olympicum (Olympic Mullein)
Agastache ‘Blue Fortune’ (Giant Hyssop)
Borago officinalis (Borage)
Tropaeolum majus (Nasturtium)
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 - 7
Plant Type Perennials
Plant Family Compositae
Common names Wild Sunflower, Elecampane
Exposure Full Sun, Partial Sun
Season of Interest Summer (Mid, Late), Fall
Height 3' - 6' (90cm - 180cm)
Spread 2' - 3' (60cm - 90cm)
Spacing 36" (90cm)
Maintenance Low
Water Needs Average
Soil Type Clay, Loam
Soil pH Acid, Alkaline, Neutral
Soil Drainage Moist but Well-Drained
Characteristics Showy
Native Plants United Kingdom
Attracts Butterflies
Garden Uses Beds And Borders
Garden Styles Prairie and Meadow, Informal and Cottage
How Many Plants
Do I Need?

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