Hypericum calycinum is an evergreen shrub like groundcover prized for its cheerful large yellow flowers in summer and glossy foliage year round. Semi spreading habit makes it ideal for sunny borders or under trees.
Height & Spread: 12 - 18 in x 24 - 36 in
Bloom Time: Summer
Light Requirements: Full sun to part shade
Soil Preference: Well drained, moderately fertile soils
Watering Needs: Moderate; tolerates dry spells
Deer Resistance: Deer resistant
Native Status
Native to southeastern Europe and Asia Minor; widely cultivated as ornamental groundcover.
WILDLIFE & INSECTS
Bees
- Attracts honeybees and bumblebees during summer bloom.
Butterflies
- Provides nectar for skipper butterflies such as Fiery Skipper and Sachem.
Spacing & Landscape Use
Spacing Recommendations
- Space 24 - 36 in apart to form a dense carpet and control erosion.
Landscape Placement
- Ideal for sunny slopes, retaining walls, or as a low hedge under trees.
Companion Plants
- Panicum virgatum (Switchgrass) - Adds height and airy movement behind the spread.
- Lavandula angustifolia - Offers scent and structure in dry, sunny sites.
- Aster novae-angliae - Extends autumn pollinator interest with late bloom.
- Salvia nemorosa - Adds vertical bold blue spikes.
- Sedum rupestre - Provides contrasting succulent texture.