Hypericum kalmianum 'Ames'

St. John's Wort

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St. John's wort is a sun loving shrub with upright branching and bright yellow flowers that grows in a dense mound to 2-3' tall. Native to many parts of North America. 'Ames' was developed at Iowa State University for improved winter hardiness.
Secondary Name:
St. John's Wort
Plant Type:
Deciduous Shrubs
Hardiness Zone:
North East/Great Lakes
Sun Exposure:
Ultimate Plant Height:
HT 2-3'
Ultimate Spread:
SP 2-3'
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