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Hypericum calycinum

St. Johnswort

Plant photo of: Hypericum calycinum
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Information by: Jerry Sortomme Editor        Photographer: Engstrom/Mullany/MJC

 

Description

Hypericum calycinum is an evergreen perennial groundcover. It grows 1' high and 1'-2' in spread, and spreads by underground runners. Yellow flowers bloom in the summer. Foliage is dark green. In some areas, it is considered invasive. It prefers sandy and alkaline soil.

 

Plant Type

Shrub, Ground cover

Height Range

1-3'

Width Range

1-3'

Flower Color

Yellow

Flower Season

Spring, Summer, Fall

Leaf Color

Green, Dark Green, Light Green

Bark Color

n/a

Fruit Color

n/a

Fruit Season

n/a

Sun

Full, Half, Shade

Water

Medium, Extra in Summer

Growth Rate

Fast

Soil Type

Sandy

Soil Condition

Average, Poor, Well-drained, Dry

Soil pH

Basic

Adverse Factors

Invasive

Design Styles

Meadow, Mediterranean, Seascape, Woodland

Accenting Features

Showy Flowers

Seasonal Interest

Summer

Location Uses

Parking Strip, Parking Lot, With Rocks

Special Uses

Erosion Control, Filler, Mass Planting, Lawn Substitute, Small Spaces

Attracts Wildlife

n/a

Water Saving Tip:

Mulching and adding compost to soil can minimize evaporation and help soil absorb and store water.