Botanical Name: Hypericum frondosum 'Sunburst'
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Common Name: Sunburst St. Johnswort  
Plant photo of: Hypericum frondosum 'Sunburst'
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Water Saving Tip:

Fix leaking sprinklers, valves, and pipes.

One broken spray sprinkler can waste 10 gallons per minute - or 100 gallons in a typical 10 minute watering cycle.

  • Anatomy

  • Culture

  • Design

Plant Type

Shrub

 

Height Range

1-3'

 

Flower Color

Yellow

 

Flower Season

Summer

 

Leaf Color

Blue Green

 

Bark Color

Red

 

Fruit Color

Red

 

Fruit Season

Summer, Fall

Sun

Full, Half

 

Water

Low

 

Growth Rate

Moderate, Slow

 

Soil Type

Sandy, Clay, Loam

 

Soil Condition

Average, Rich, Well-drained, Dry

 

Soil pH

Neutral, Basic

 

Adverse Factors

n/a

Design Styles

English Cottage, Formal, Mediterranean, Ranch

 

Accenting Features

Showy Flowers

 

Seasonal Interest

Summer, Fall

 

Location Uses

Shrub Border, Foundation

 

Special Uses

Hedge, Small Spaces

 

Attracts Wildlife

n/a

Information by: Stephanie Duer
Photographer:

  • Description

  • Notes

'Sunburst' is a popular cultivar of shrubby St. Johnswort that, in comparison to the species, features slightly larger flowers (to 2 inches diameter) on a more compact plant (about 3 feet tall). Otherwise, it shares all the characteristics of H. frondosum.
Grow in average, well-drained soils in full sun to part shade. Prefers rich, sandy loams. Tolerant of some drought. Apply mulch around root zone to aid in over-wintering. Plants may suffer tip dieback or die entirely to the ground in harsh winters. When plants die to the ground in winter, the roots often survive and send up new shoots in spring. Flowers bloom on new wood, so winter damage will not adversely affect flowering.