Hypericum frondosum ‘Sunburst’

('Sunburst', St. John's Wort)


Hardiness Zones:

 5a  5b  6a  6b  7a  7b  8a  8b

Quick Overview:

Golden St. John?s wort is a small, dense, upright, mounded deciduous shrub that is noted for its large showy golden yellow flowers and attractive blue-green foliage. It grows to 3-4? tall and as wide. It is native from Kentucky to North Carolina south to Georgia, Alabama and Texas where it typically occurs in rocky hills, limestone glades and barrens. Features linear to oblanceolate blue green leaves (to 3? long) and mostly solitary bright yellow 5-petaled flowers (to 1.75? diameter) with dense bushy center stamens. Blooms in June and July. Flowers give way to reddish-brown narrow ovoid fruit capsules that ripen in September and persist well into winter. Attractive exfoliating reddish-brown to purplish bark develops on mature stems. Foliage is semi-evergreen to evergreen in the southern part of its growing range. ?Sunburst? is a popular cultivar that, in comparison to the species, features slightly larger flowers (to 2? diameter) on a more compact plant (to 3? tall).

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Easily grown in average, medium, well-drained soils in full sun to part shade. Prefers rich, sandy loams. Tolerant of some drought. Mulch roots in winter. 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.

Additional information

Common Name

'Sunburst', St. John's Wort

Botanical Name

Hypericum frondosum 'Sunburst'


3 gallon

Evergreen or Deciduous


Hardiness Zone

5a, 5b, 6a, 6b, 7a, 7b, 8a, 8b

Growth Rate


Light Requirements

Part-shade, Part-sun, Sun


to 4 ft.


to 4 ft.

Soil Condition


Water Needs


Blooming Period

June to July

Flower Color




Foliage Color


Deer Resistant


Fall Color


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