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Hypericum calycinum
Hypericum calycinum

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Zones 4-9, 14-24, 31, 32
Full SunPartial Sun
Full, Partial
Regular Water

Hypericum coris

St. Johnswort
Evergreen, Ground covers, Shrubs, Decorative fruit or berries, Flowers


All bear single flowers with a prominent sunburst of stamens in the center. Shal­lowly cup-shaped, five-petaled blooms range in color from creamy yellow to gold; flowers may be solitary or in clusters. Neat, fresh green foliage. Various species are used for mass plantings, groundcovers, informal hedges, or borders. Grow especially well in mild, moist regions.

A difficult-to-control rust is extensively infecting plantings (especially those of the species H. calycinum) in the Pacific North­west. Remove and destroy blighted leaves and any leaf litter; avoid overhead watering of plants in the evening.

Hypericum coris

From Europe. Grows to 6–12 in. tall and about 1 ft. wide, with narrow, medium green, 1/2–1-in.-long leaves in whorls of four to six. Bears loose clusters of yellow, 3/4-in.-wide flowers in spring or early summer. Good choice as a groundcover or rock garden plant.

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