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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 prominent sunburst of stamens in 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 used for mass plantings, ground covers, informal hedges, 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 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 ground cover or rock garden plant.

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