The Plant Store is now closed for 2023 and will re-open for sales in May of 2024

  • Please see the Using the Plant Library  page  for some tips on how to make the most of the information here to select species for creating a healthy native plant community suited to the conditions of your site.

Hypericum ascyron subsp. pyramidatum, American Great St. John's-wort

Hypericum ascyron subsp. pyramidatum

American Great St. John's-wort

  • Full sun to part shade
  • Average to wet soil
  • 6' to 10' in height
  • Ontario Native, Meadows and wet Meadow ecosystems

A very showy species with exceptionally large blooms that is new to my gardens, grown from seed from the Ottawa Wildflower Seed Library.

You can find more information about them here:

https://www.minnesotawildflowers.info/flower/great-st.-johnswort 

Photos are of Hypericum ascyron, by Rich Dunbar, Alpsdake, Qwert1234 and Alpsdake via Wikimedia Commons 

Species that were not sown / aren't being sown for 2023 are marked with an * 
Species that are native to this continent, but not historically native to Ontario are marked with a ~ 
While it rarely comes up, I do reserve the right to limit plant quantities, mostly to help ensure that as many native plant gardens as possible become a reality
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