Photo of Hypericum kalmianum flower, foliage by Forestfarm

Photo by Forestfarm

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Hypericum kalmianum

Also Known As

  • Kalms St. Johns Wort

Plant type

shrub

size

  • H: 2'-3'
  • W: 2'-3'

planting zones

  • 4a-7b

More Options

Hypericum kalmianum plant details

Hypericum kalmianum is a broadleaf evergreen shrub with green foliage. In summer flowers emerge. Grows well with sun - mostly shade and even moisture water. Does well in average, rich and well-drained soil.

CHARACTERISTICS OF Hypericum kalmianum

Plant type: shrub
Plant family: hypericaceae
Foliage: evergreen green
Mature size: 2 FT - 3 FT - wide, 2 FT - 3 FT - tall
Uses: hedge

GROWING CONDITIONS for Hypericum kalmianum

USDA Zones: 4a - 7b
Sun exposure: sun - mostly shade
Watering frequency: even moisture
Soil needs: average, rich and well-drained

Nursery contributed plant descriptions

?Handsome in flower and among the hardiest? (Wyman); from rocky open woodlands of Quebec and Michigan, this tough 3' shrub produces its bright-yellow 1" flowers in mid-summer. S-PSh/M-D
There aren't many broadleaved evergreens native to the Great Lakes Region, but this is one of them, and a very nice one as well. Forms a tidy 2-3 foot shrub, and in late summer smothers itself with standard hypericum flowers ? five rounded yellow petals surrounding a central poof of long, bright yellow stamens. Extremely tough and easy. Zone 4

Gardening facts about Hypericum kalmianum plant

How to Grow Hypericum kalmianum

  • Sun Exposure

    • sun - mostly shade
  • Water Needs

    • even moisture
  • Soil Needs

    • average
    • well-drained
    • rich

Features

  • Foliage Color

    • green
  • Flower Season

    • summer
  • Foliage Season

    • evergreen

Landscape groups by tags

See other plant types of Hypericum for your garden

aka St. John's Wort

Plant Type

Shrub

Zones

6a-9b

Size

Height: 2'-6'

Width: 3'-6'

  • sun - mostly shade
  • regular
Photo of Hypericum fortuneana 'Purple Fountain' flower by Forestfarm
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aka Hypericum 'Hidcote', Hidcote St. John's Wort

Plant Type

Shrub

Zones

5a-9b

Size

Height: 2'-6'

Width: 2'-6'

  • sun - mostly shade
  • regular - drought tolerant
Photo of Hypericum x hidcoteense 'Hidcote' flower, foliage by Wouter Hagens
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aka St. John's Wort

Plant Type

Shrub

Zones

5a-9b

Size

Height: 2'-4'

Width: 2'-5'

  • sun - mostly shade
  • regular
Photo of Hypericum uralum foliage by Stan Shebs
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aka Golden St John's Wort, Sunburst St. John's Wort, Sunburst St. Johnswort

Plant Type

Shrub, Groundcover

Zones

6a-9b

Size

Height: 2'-4'

Width: 3'-4'

  • sun - mostly shade
  • even moisture - drought tolerant
Photo of Hypericum frondosum 'Sunburst' flower by Far Reaches Farm
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aka Brodie St. Johnswort

Plant Type

Shrub

Zones

7a-9b

Size

Height: 3'

Width: 3'

  • sun - mostly sun
  • regular - occasional
Photo of Hypericum galioides 'Brodie' flower by Dancing Oaks Nursery
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+44 more Hypericum
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