Cup plant

Cup plant (Silphium perfoliatum) 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 green. It has yellow flowers which appear in late summer.
== Cultivation ==
It is propagated by the following methods: container, seed. Seeds will be more successful if cold stratification is used.
Soil preferences: coarse/medium/fine soil, pH 4.5-7.5. This plant has low drought tolerance. It tolerates partial shade.
== Uses and Relationships ==
== More Information ==
The initial draft of this article was automatically generated from the Silphium perfoliatum 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:Silphium Category:Native perennial flowers Category:North American natives Category:Yellow-flowered natives Category:Late Summer blooming natives Category:Natives with green foliage Category:Rapid-growing natives Category:Natives between 6 and 12 feet tall Category:Drought intolerant natives Category:USDA native stubs