Hypericum kalmianum

Common name: Kalms St. Johns Wort

Native plant

I have only seen this plant near interdunal pools on calcareous sand. It seems to do very well on our heavy clay soil as long as it is in full sun. Beautiful yellow flowers bloom at the end of June to early July.  This is a very nice plant to be used in masses in front of taller plants.


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Pricing information per unit for 5 gallon growing method
1 to 10 units $19.50
11 to 24 units $17
25 or more units $14.50

Plant Details

Plant type


Soil type

Dry, Dry Mesic

Light exposure

Full Sun

Bloom period


Growth form


General information

Mature height
2 Feet
Mature width
2 Feet
Max height
3 Feet
Max width
4 Feet
Growth rate
Flower color
Fall color
Yellow Orange

Additional information

Pollinator hot spot

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