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Hypericum calycinum

Hypericum calycinum

St Johnswort

Aaronsbeard St. Johnswort has blue-green foliage followed by small yellow flowers in summer. Once established, Hypericum calycinum is a good groundcover for poor, dry sites and excellent for use on extreme slopes or sandy soils.  Hypericum calycinum blooms on new growth.  If it does not dieback in winter, shear plants in late winter or early spring to renew and induce new growth and flowers.  

Height

18 Inches

Spread

24 Inches

Bloom Color

Yellow

USDA Hardiness Zone

5
Current Availability
Qty Avail Description Comments Future Crop Future Crop Ready Date
98 Hypericum calycinum #1 (yellow) Semi-evergreen 144 mid July
Characteristics & Attributes
Attributes
Deer Resistant
Erosion Control
Groundcover
Soil Conditions
Dry
Sandy
Exposure
Full Shade
Partial Shade/Shade Tolerant
Attracts Wildlife
Attracts Pollinators
Tolerance
Drought Tolerant
Salt Tolerant
Foliage Color
Blue/Blue-Gray/Blue-Green
Companion Plants to Hypericum calycinum
Russian Sage Perovskia atriplicifolia 'Denim 'n' Lace'
Russian Sage
Black-Eyed Susan Rudbeckia 'American Gold Rush'
Black-Eyed Susan
Similar Plants to Hypericum calycinum
Cutleaf Stephanandra Stephanandra incisa 'Crispa'
Cutleaf Stephanandra
Privet Honeysuckle Lonicera pileata
Privet Honeysuckle
Lowbush Blueberry Vaccinium angustifolium
Lowbush Blueberry