Silphium perfoliatum - 2018
By Andrewr
14 Jul, 2018
2 likes
A plant for the back of the border, this grows to seven feet even in a dry season. For sun or part shade, in a soil that doesn't dry out. Probably best with some support to keep the stems upright. This clump is twenty yeas old and getting better and better every year
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This photo is of species Silphium perfoliatum.
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This photo is of "Silphium perfoliatum" in Andrewr's garden
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