Family: hypericaceae
Common name(s): Common St. Johnswort
Hardiness ratings: USDA zone 3~4 - 8
General resources
Links for Hypericum perforatum
- Connecticut Botanical Society - Wildflower profile. (1 photo)
- Cretan Flora - Botanical description of this species native to Crete. (3 photos)
- Dave's Garden PlantFiles - Profile page with horticultural basics, and member-contributed photos and comments. (zone 4-8) (11 photos)
- Floridata - Illustrated informative profile page with notes on culture, usage, and noteworthy features. (zone 3-8) (2 photos)
- Garden.org - Community-assembled plant profile (7 photos)
- Illinois Wildflowers - Informative illustrated page with description and cultivation details, also covering range and faunal associations. (3 photos)
- Iris' Garden - Gardener in the Netherlands presents a photo of this plant, with basic horticultural information. (1 photo)
- Kansas Wildflowers & Grasses - Plant portrait with botanical details and description (14 photos)
- Missouri Botanical Garden - Plantfinder page for one of the plants growing at the garden, with usually one or more photos, horticultural information, and noteworthy characteristics. (zone 3-8). Also a page for 'Topas'.
- Missouri Plants - Description and photographs of botanical features, with notes about habitat and native status. (8 photos)
- North Carolina State University factsheet - Plant profile with horticultural details and comments (zone 3b-8a) (2 photos)
- Ontario Rock Garden Society - Germination information
- Turner Photographics - Profile of wildflower of the US Pacific Northwest, with botanical description, habitat and distribution, and photo gallery.
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