Swamp Sunflower/Helianthus angustifolius

Photo from iNaturalist user Samantha Knowlden

Photo from iNaturalist user Becky Dill

Photo from iNaturalist user Becky Dill

Photo from FANN

Photo from FANN

Phonetic Spelling  hee-lee-AN-thus an-gus-tee-FOH-lee-us Plant Type: Wildflower Plant Height: 3’-10’ Plant Spread: 2’-6’ spreads through roots and seeds Sunlight Preference: Partial shade to full sun (flowers best in full sun) Soil Preference: Moist to occasionally wet acidic soils. Can adapt to well-drained soils once established and given occasional supplemental water. Uses in Landscaping: Accent plant to be used in groups for their attractive foliage and flowers in and amongst garden beds. Can be planted in a line to act as a barrier plant. How and When to Plant: Plant in the wet season (June-August) to avoid needing to water during establishment. If planted in spring water three times a week or more for two weeks to allow plants to establish then water as needed. Upkeep: Plants spread via root systems and seed so they may grow out and away from their original planting area so they may need to be cut back. Charismatic/ID Features: Flowers/Fruits: Flowers appear in late August-November upon tall flowering stalks and are yellow in color with dark centers. Fruits develop throughout the winter and disperse in the spring. Fruits are used by a variety of wildlife like squirrels and birds. Leaves: Leaves are long and thin with a rough texture to them. Stems: Stems are narrow and fuzzy and typically have purply brown color to them.