Helianthus angustifolius
Swamp Sunflower
Please register or login to build your personal plant list.Swamp Sunflowers have yellow rays and reddish-brown to purple centers; they bloom September-November. Pinch the growth in early June for bushier...
Description:
Swamp Sunflowers have yellow rays and reddish-brown to purple centers; they bloom September-November. Pinch the growth in early June for bushier plants with more blooms in the fall. This plant tolerates wet areas of the yard and bog-like conditions, and is suitable for rain gardens or the edges of water features. Use as a specimen plant or massed in beds.
Plant Details:
Other Common Names: Narrowleaf Sunflower
Plant Type: Flower, Perennial
New Jersey Native: Yes
Bloom Times: Late Summer to Fall
Bloom Colors: Yellow
Deer Resistance: None
Attracts Pollinators and Wildlife: Bees and Other Pollinators, Butterflies, Birds
Salt Tolerance: Medium
Hardiness Zone: 6a, 6b, 7a, 7b
Physiographic Region: All Regions in NJ
Grows in Special Ecoregions: Barrier Island/Coastal, Pinelands
Soil Characteristics
Soil Type: Loam, Organic, Sandy, Clay
Soil Moisture: Moist, Wet
Soil pH: Acidic, Slightly Acidic, Neutral
Light Needs of Plant
Optimal Light: Full Sun
Light Range: Full Sun, Partial Shade
Water Needs of Plant
Soil Moisture: Moist, Wet
Drought Tolerance: Low
Size and Growth Rate
Height: 2 - 4 ft
Spread: 2 - 4 ft
Growth Rate: Medium