2ft tall leafy stalks of Helianthus angustifolius growing in gallon pots. In the background is are the trunks of several trees at the woodland nursery at The MagiK Garden, with a black fence visible in the far rear.

Eastern PA Native, Keystone Plants, MagiK Picks, North American Native Plants, Northern-Piedmont Native, PA Herbaceous, Seed/Spore Grown, Species of Concern

Swamp Sunflower

Name: Swamp Sunflower
SKU: Helianthus angustifolius
Availability: OutOfStock

$15.00

In Production

SKU: Helianthus angustifolius Categories: Eastern PA Native, Keystone Plants, MagiK Picks, North American Native Plants, Northern-Piedmont Native, PA Herbaceous, Seed/Spore Grown, Species of Concern

Description

There are so many sunflower species native to North America, it’s hard to keep track of them all. This one is native to southeastern PA, albeit extirpated from the state, so let’s bring it back! Since PA is at the northern end of the native range for this species, which is far more common in the southeast, it is well adapted for our changing climate.

This species loves growing in wet soil (not suggestive like other species which are only called swamp-something-or-other but can tolerate average soil). They will begin to droop almost immediately if they dry out even a little.

Available in true gallon pots, with three plants per pot.

Additional information

Family	Asteraceae
Container Size	1GAL
Growth Cycle	perennial
Maximum Height	< 8ft
Maximum Width	2-4ft
Growth Rate	fast
Lighting Requirements	sun to part sun
Heliophily	8
Soil Moisture	moist/medium, well-drained, occasionally dry, mesic, occasionally wet, medium wet
Wetland Indicator	FACW
Soil Texture	clay, clay loam, high organic matter, loam, loamy sand, poor soil, sand, sandy clay, sandy clay loam, sandy loam, shallow rocky, silt, silty clay, silty clay loam, silty loam
Soil pH	acidic, acidic-neutral, neutral, neutral-alkaline, strongly acidic
Maintenance	I Will Survive
USDA Hardiness Zone	hardy to 5a
Ecoregion	35 South Central Plains, 36 Ouachita Mountains, 37 Arkansas Valley, 38 Boston Mountains, 39 Ozark Highlands, 45 Piedmont, 55 Eastern Corn Belt Plains, 58 Northeastern Highlands, 59 Northeastern Coastal Zone, 63 Middle Atlantic Coastal Plain, 64 Northern Piedmont, 65 Southeastern Plains, 66 Blue Ridge, 67 Ridge & Valley, 68 Southwestern Appalachians, 69 Central Appalachians, 70 Western Allegheny Plateau, 71 Interior Low Plateaus, 72 Interior River Valleys and Hills, 73 Mississippi Alluvial Plain, 74 Mississippi Valley Loess Plains, 75 Southern Coastal Plain, 76 Southern Florida Coastal Plain, 84 Atlantic Coastal Pine Barrens
Native Habitat	anthropogenic, bottomland woodland edge, riparian, sandy/rocky slope, sandy/rocky woodland, sloped woodland edge, tidal flat, upland meadow, upland woodland edge, wet meadow, wetland, woodland bottomland, woodland slope, woodland upland
NatureServe Global Rank	G5 – secure
NatureServe National Rank	N5 – secure in the US
NatureServe State Rank	SX – presumed extirpated in PA
Sociability Index	level 5 – extensive colonies
Bloom Color	orange-yellow, yellow
Bloom Time	OCT, NOV
Attracts	bees, butterflies, insects, moths, pollinators, songbirds, wildlife
Benefit To Habitat	bird food, keystone, nectar, nesting material, pollen, wildlife cover
Tolerates	clay soil, deer tolerant, drought, fire, heat, ponding, poor soil, salt, urban conditions
Ornamental Features	fall color, showy flowers, texture
Ethnobotanical	cut flower
Garden Theme	butterfly garden, cottage garden, pollinator garden, woodland garden, wild garden, container garden, rain garden
Suggested Use	background layer, borders, container, hedge, invasive species control, mass planting, naturalize, pond edge, roadside ditch, screen, septic field, slope/bank, stormwater basin, vernal pool
Judgy Judy Factor	doesn't mean it's not there., Just because you can't see it

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