St. John's Wort
St. John's Wort (Hypericum calycinum)
St. John's Wort (Hypericum calycinum) is a vigorous, evergreen groundcover known for its bright yellow, star-shaped flowers that bloom profusely in summer. This spreading shrub offers dense foliage and a long flowering period, making it a popular choice for erosion control and ornamental groundcover in gardens and landscapes.
Distinctive Features
St. John's Wort produces abundant, large, golden-yellow flowers with prominent stamens, creating a cheerful and eye-catching display. The glossy, dark green foliage remains attractive year-round, providing dense coverage and excellent weed suppression.
Growing Conditions
- Sun Exposure: Full sun to partial shade
- Soil: Adaptable to various soils; prefers well-drained, moderately fertile soils
- Water: Moderate; tolerates drought once established
- USDA Hardiness Zones: 5�9
Ideal Uses
- Groundcover: Excellent for erosion control and large area coverage
- Slopes and Banks: Stabilizes soil with dense root systems
- Underplanting: Works well beneath trees and shrubs
- Borders and Edges: Provides a bright, low-growing accent
- Wildlife Gardens: Attracts pollinators with abundant flowers
Low Maintenance Care
- Watering: Water regularly until established; drought tolerant thereafter
- Pruning: Trim back after flowering to maintain shape and encourage renewal
- Fertilizing: Generally low fertilizer needs; apply balanced fertilizer in early spring if needed
- Mulching: Mulch to conserve moisture and suppress weeds
- Protection: Adaptable; no special protection required
Why Choose St. John's Wort?
- Vibrant Yellow Flowers: Long-lasting summer blooms attract pollinators
- Evergreen Foliage: Provides year-round ground coverage and color
- Versatile Groundcover: Ideal for slopes, banks, and large areas
- Low Maintenance: Easy to grow with minimal care
- Erosion Control: Dense growth stabilizes soil effectively
Hypericum calycinum is a reliable and colorful groundcover that enhances landscapes with its bright blooms and evergreen foliage.
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