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This plant is said to grow outdoors in the following regions:
Saint Charles, Illinois
'Red Thunder' was selected by Piet Oudolf from a Korean collection of S. officinalis. It is not a S. canadensis, which has white flowers....Read More The flower color is a dark burgundy. Height is 3-4' by 2' wide. Hardy to Z4.
'Red Thunder' was selected by Piet Oudolf from a Korean collection of S. officinalis. It is not a S. canadensis, which has white flowers....Read More