Helianthus angustifolius | Swamp Sunflower | Various
Helianthus angustifolius belongs to the plant family ASTERACE and Genus Helianthus This plant specimen prefers Wet soil a pH of 7 . All plants need light to allow the photosynthesis process of converting carbon dioxide to growth sugars to take place. Some plants need more sun-light than others. For this plant those sunlight conditions are well described as … Full sun
We are often asked about plants for humming bird attraction. Unfortunately Helianthus angustifolius does not attract these beautiful hummingbird, sunbird or nectar feeding varieties of garden birds
Impressive Autumn foliage display is not shown by Helianthus angustifolius so look for an alternative plant for pleasing Fall leaf properties
Helianthus angustifolius swamp sunflower is not known as a butterfly attracting plant
Almost all plants grown in gardens need to be fed using fertilzer in order to see them at their best. For this plant the suggested fertilizer program would be based upon … Typical mix of: 3 parts Nitrogen (N), 2 parts Phosphorous (P) and 3 parts Potassium (K for Latin name Kalium).
Helianthus angustifolius can survive very cold winters with annual averages as low as -30 Fahrenheit. Swamp sunflower needs summer days with high heat. It likes moist to wet soils.
Helianthus angustifolius will under good growing conditions survive and prosper between 3 and10 years.
Helianthus angustifolius is a perennial. Flowers: Swamp sunflower has 2" blooms on 7' stalks. The flowers are usually a yellow color, with an accent in brown.
Helianthus angustifolius | Swamp Sunflower is classed as a flowering plant specimen. The flower's principle colouring is yellow. If the flower has other colours these flower accent colors would be described as … brown. Secondary color or not the flower is described as: 2" blooms on 7' stalks
This specimen plant will normally never grow higher than 5' feet will have an overall spread somewhere between ... not specified on this plants page
"Heat-zone Gardening: How to choose plants that thrive in your region's warmest weather", Dr. H. Marc Cathey with Linda Bellamy, American Horticultural Society, Time-Life Books, 1998.
"Xeriscape Gardening: Water Conservation for the American Landscape", Connie Lockhart Ellefson, Thomas L. Stephens, and Douglas Welsh, Macmillan Publishing Company, New York, 1992.