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Helianthus angustifolia – Swamp Sunflower

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Product Description

Gaultheria procumbens - Eastern Teaberry
Helleborus x hybridus - Lenten Rose

Helianthus angustifolia – Swamp Sunflower

Native/Non-native – Native
Hardiness Zone – 5-9
Sun – Full sun to partial shade
Moisture – Moist to wet
Size – 5-7′ height x 4′ spread
Comments
* Profuse yellow flowers late summer through October
* Attracts Butterflies and pollinators
* Flood plains, good for water retention ponds

Category:
Description

Description

Helianthus angustifolius

Helianthus angustifolius L.

Swamp sunflower, Narrowleaf sunflower, Narrow-leaved sunflower

Asteraceae (Aster Family)

Synonym(s): Helianthus angustifolius var. planifolius

USDA Symbol: HEAN2

USDA Native Status: L48 (N)

Narrowleaf Sunflower is a member of the family Asteraceae, which includes herbs, sometimes shrubs or vines, rarely trees, with simple or compound, alternate or opposite leaves. Flowers small, but organized into larger heads resembling a single, radially symmetrical flower cupped by a ring of green bracts. Flower-like heads: tiny, radially symmetrical central flowers form the disk; larger flowers around the edge; the rays, strap-shaped and resembling petals (however, all flowers in one head may be disk flowers or rays.)

In this large worldwide family there are about 920 genera and 19,000 species. Cosmos, Sunflower, Zinnia, Dahlia, and many others are grown as ornamentals. Lettuce, Sunflowers, and Artichokes provide food. Safflower oil is obtained from this family.

Plant Characteristics

Duration: Perennial
Habit: Herb
Leaf: Dark Green
Flower: Flowers 2 inches
Fruit:
Size Class: 1-3 ft.

Bloom Information

Bloom Color: Yellow
Bloom Time: Oct

Distribution

USA: AL , AR , DC , DE , FL , GA , IL , IN , KY , LA , MD , MO , MS , NC , NJ , NY , OH , OK , PA , SC , TN , TX , VA , WV
Native Habitat: Flood plains, bottomland

Growing Conditions

Water Use: Medium
Light Requirement: Part Shade
Soil Moisture: Wet
CaCO3 Tolerance: Medium
Soil Description: Sandy, Sandy Loam, Medium Loam, Clay Loam, Clay, Acid-based

Benefit

Use Ornamental: Bog or pond area, Blooms ornamental, Color
Conspicuous Flowers: yes
Attracts: Birds

Value to Beneficial Insects

Special Value to Native Bees

This information was provided by the Pollinator Program at The Xerces Society for Invertebrate Conservation.

Propagation

Propagation Material: Seeds

Find Seed or Plants

Order seed of this species from Native American Seed and help support the Wildflower Center.

National Wetland Indicator Status

Region: AGCP AK AW CB EMP GP HI MW NCNE WMVE
Status: FACW FACW FAC FACW FACW

This information is derived from the U.S. Army Corps of Engineers National Wetland Plant List, Version 3.1 (Lichvar, R.W. 2013. The National Wetland Plant List: 2013 wetland ratings. Phytoneuron 2013-49: 1-241). Click here for map of regions.

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Baker Environmental Nursery
949 Marshall Clark Rd.
Hoschton, GA 30548
Call: 706-654-9072
Fax: 706-658-2347
[email protected]

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