Sunburst St. John's Wort

Hypericum frondosum 'Sunburst'

Plant Details:

Plant Type: Perennial
Plant Family: Clusiaceae
Plant Description: Dense and mounded shrubby perennial with oblong blue-green leaves. Large golden-yellow flowers bloom in early summer. Flowers are solitary and have a cluster of bushy stames in the center. Reddish-brown bark is exfoliating on mature stems. Topgrowth may not survive harsh winters but will quickly grow again from the roots. Tolerates some drought.

Maintenance:

Maintenance Type: Perennial - Herbaceous
Plant Care: Perennial - Herbaceous (soft-stemmed plants that die back in winter and regrow in spring): Remove spent blooms to promote rebloom later. Some plants tend to flop over after the first bloom and attempt to regrow from the base; in these cases, the old stems can be cut away in summer. As plants become dormant in the fall, remove dead leaves and stems.

Plant Attributes:

Mature Size: 3-4' tall and wide
Utah Native: No
Plant Select: No
Pollinator Friendly: Yes
Localscapes: Infill Plant, Foundation Plant
Foliage Interest: No
Foliage Colors: Blue-green
Bloom Colors: Yellow
Bloom Seasons: Summer
Bloom Period: Jun - Jul

Growing Conditions:

Hardiness Zone: 5 to 8
Light Requirement: Full Sun (6+ hrs sun), Full Shade (0-4 hrs sun), Part Shade (4-6 hrs morning sun), Part Sun (4-6 hrs afternoon sun)
Irrigation Requirement:     Moderate (1/2" every 7-10 days)
Salt Tolerant: Unknown
Deer Resistant: Unknown

Garden Location:

  • Planting Path
    • First, Amendments
    • Turf Alternatives
  • Spring
  • Summer
  • Fall
  • Winter