Botanical Name: Hypericum calycinum
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Common Name: Creeping St. Johnswort, Aaronsbeard  
Plant photo of: Hypericum calycinum
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Water Saving Tip:

Apply as little fertilizer as possible.

If you use fertilizer make sure it stays on the landscape, and carefully water it in so there is NO runoff.

  • Anatomy

  • Culture

  • Design

Plant Type

Broadleaf Evergreen, Shrub, Ground cover

 

Height Range

1-3'

 

Flower Color

Yellow

 

Flower Season

Summer, Fall

 

Leaf Color

Green, Blue Green, Light Green

 

Bark Color

Brown

 

Fruit Color

Red

 

Fruit Season

Fall

Sun

Full, Half, Shade

 

Water

Medium

 

Growth Rate

Fast

 

Soil Type

Sandy, Clay, Loam, Rocky, Unparticular

 

Soil Condition

Average, Poor, Well-drained, Dry

 

Soil pH

Neutral, Basic

 

Adverse Factors

Invasive

Design Styles

Formal, Japanese, Meadow, Mediterranean, Seascape, Woodland

 

Accenting Features

Showy Flowers

 

Seasonal Interest

Summer, Fall

 

Location Uses

Entry, Shrub Border, Parking Strip, Parking Lot, With Rocks

 

Special Uses

Erosion Control, Filler, Mass Planting, Naturalizing, Small Spaces

 

Attracts Wildlife

n/a

Information by: Stephanie Duer
Photographer: Engstrom/Mullany/MJC

  • Description

  • Notes

Hypericum calycinum is semi-woody perennial groundcover. It has attractive blue-green foliage that stays evergreen in mild winters, sometimes taking on a purplish hue. It has interesting bright yellow flowers June through September, followed by red berries. It grows 12 to 18 inches tall and 24 inches wide, and spreads by underground runners. Does well in dry shade areas.
Tops of the plants are sometimes killed in severe winters, but trimming off the dead wood in late winter to early spring keeps things tidy. As it blooms on new wood, winter damage doesn't typically affect bud production. Does well in sandy soils and in dry shade.