Swamp sunflower

Swamp sunflower (Helianthus angustifolius) is a perennial flower native to the lower 48 states of the United States and found in the state of Maryland; it may or may not be native to Maryland.USDA Plants Database, 
== Identification ==
Its foliage is typically dark green and has conspicuous fall interest. It has yellow flowers which appear in late summer.
It grows at moderate speed from rhizomes to a height of about 5.6 feet with roots at least 6 inches deep, and has a lifespan of 100 to 250 years.
== Cultivation ==
The USDA believes this plant to be readily available for purchase. It is propagated by the following methods: seed, sprigs. Typically, this plant will seed itself at a moderate rate, and new seedlings will have a medium chance of success compared to other plants of this type.
Soil preferences: coarse/medium soil, pH 4-7, low fertilizer. Provide medium moisture. This plant has no salinity tolerance and medium drought tolerance. It tolerates partial shade.
== Uses and Relationships ==
If you're seeking to provide forage to wildlife, this plant is of high value.
== More Information ==
The initial draft of this article was automatically generated from the Helianthus angustifolius profile in the USDA Plants Database. The Biota of North America Program (BONAP) may or may not have a page for this genus with detailed range maps. (BONAP range maps are copyrighted and should not be placed directly on our wiki.)
== References ==
Category:Helianthus Category:Native perennial flowers Category:North American natives Category:Commercially available natives Category:Yellow-flowered natives Category:Late Summer blooming natives Category:Natives with dark green foliage Category:Natives with conspicuous fall foliage Category:Moderate-growing natives Category:Spreading natives Category:Self-seeding natives Category:Natives between 3 and 6 feet tall Category:Medium moisture demand natives Category:Drought tolerant natives Category:USDA native stubs