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Helianthus decapetalus - L.

Common Name Thinleaf sunflower
Family Compositae
USDA hardiness 2-8
Known Hazards None Known
Habitats Open woodlands, woodland borders, savannas, partially shaded areas along rivers, meadows, and thickets. Widespread in beech, maple, and red oak forests, especially at borders and openings.
Range Native to the Eastern and Central United States and Canada, from New Brunswick west to Iowa, Wisconsin, and Ontario, south as far as Georgia and Louisiana.
Edibility Rating    (0 of 5)
Other Uses    (2 of 5)
Weed Potential Yes
Medicinal Rating    (0 of 5)
Care (info)
Fully Hardy Moist Soil Semi-shade Full sun
Helianthus decapetalus Thinleaf sunflower


H. Zell wikimedia.org
Helianthus decapetalus Thinleaf sunflower
H. Zell wikimedia.org

 

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Summary


Physical Characteristics

 icon of manicon of flower
Helianthus decapetalus is a PERENNIAL growing to 1.2 m (4ft) by 1.2 m (4ft in) at a medium rate.
See above for USDA hardiness. It is hardy to UK zone 3.
It is noted for attracting wildlife.
Suitable for: light (sandy), medium (loamy) and heavy (clay) soils, prefers well-drained soil and can grow in nutritionally poor soil. Suitable pH: mildly acid and neutral soils. It can grow in semi-shade (light woodland) or no shade. It prefers moist soil.

UK Hardiness Map US Hardiness Map

Synonyms

No synonyms are recorded for this name.

Habitats

Edible Uses

None Known

References   More on Edible Uses

Medicinal Uses

Plants For A Future can not take any responsibility for any adverse effects from the use of plants. Always seek advice from a professional before using a plant medicinally.


None known

References   More on Medicinal Uses

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An important new book from PFAF. It focuses on the attributes of plants suitable for food forests, what each can contribute to a food forest ecosystem, including carbon sequestration, and the kinds of foods they yield. The book suggests that community and small-scale food forests can provide a real alternative to intensive industrialised agriculture, and help to combat the many inter-related environmental crises that threaten the very future of life on Earth.

Read More

FOOD FOREST PLANTS

Other Uses

Cut Flowers or Dried Flowers. Invertebrates shelter: beneficial for insects and other arthropods. Nectary: provides nectar or pollen for beneficial insects [1-2].

Special Uses

Food Forest

References   More on Other Uses

Cultivation details

An attractive upright rhizomatous perennial wildflower. Prefers partial sun or dappled sunlight, moist to mesic conditions, and a rich loamy soil. Like other perennial sunflowers, this species may spread aggressively in some situations. Time to full growth: 2 to 5 years. For polyculture design as well as the above-ground architecture (form - tree, shrub etc. and size shown above) information on the habit and root pattern is also useful and given here if available. The plant growth habit is a runner spreading indefinitely by rhizomes or stolons [1-2]. The root pattern is rhizomatous with underground stems sending roots and shoots along their length [1-2].

References   Carbon Farming Information and Carbon Sequestration Information

Temperature Converter

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Propagation

Other Names

If available other names are mentioned here

Ten petaled sunflower, thinleaf sunflower, thin-leaved sunflower

Found In

Countries where the plant has been found are listed here if the information is available

USA

Weed Potential

Right plant wrong place. We are currently updating this section. Please note that a plant may be invasive in one area but may not in your area so it’s worth checking.

This species may spread aggressively in some situations.

Conservation Status

IUCN Red List of Threatened Plants Status :

Related Plants
Latin NameCommon NameHabitHeightHardinessGrowthSoilShadeMoistureEdibleMedicinalOther
Helianthus annuusSunflower, Common sunflowerAnnual3.0 6-9 FLMHSNDM525
Helianthus cusickiiCusick's sunflowerPerennial0.6 7-10 FLMHNDM310
Helianthus doronicoides Perennial1.8 4-8  LMHNM20 
Helianthus giganteusGiant SunflowerPerennial3.6 4-8 FLMHNM300
Helianthus hybridsPerennial SunflowerPerennial3.6 4-11 FLMHNDM422
Helianthus laetiflorusShowy Sunflower, Cheerful sunflowerPerennial2.0 4-8  LMHNM20 
Helianthus lenticularisWild SunflowerAnnual3.0 -  LMHNM30 
Helianthus maximilianiiMaximillian Sunflower, Maximillian DaisyPerennial2.4 5-10 MLMHNM300
Helianthus pauciflorusStiff Sunflower, Prairie SunflowerPerennial1.5 3-7 FLMHNDM401
Helianthus petiolarisPrairie SunflowerAnnual3.0 4-8  LMHNDM210
Helianthus strumosusPaleleaf Woodland SunflowerPerennial2.0 4-8  LMHNM21 
Helianthus tuberosusJerusalem ArtichokePerennial2.4 4-8 FLMHNDM413

Growth: S = slow M = medium F = fast. Soil: L = light (sandy) M = medium H = heavy (clay). pH: A = acid N = neutral B = basic (alkaline). Shade: F = full shade S = semi-shade N = no shade. Moisture: D = dry M = Moist We = wet Wa = water.

 

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Botanical References

Links / References

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Subject : Helianthus decapetalus  
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