Hypericum calycinum

Hypericum calycinum, also known as Aaron’s beard, rose of Sharon or creeping St. John's wort, is a versatile and visually striking plant that has found favor with gardeners and landscapers around the world. Belonging to the Hypericaceae family, this evergreen shrub is appreciated for its vibrant yellow flowers, low-maintenance growth, and soil-stabilizing capabilities.

Hypericum calycinum is a low-growing, spreading shrub that typically reaches a height of 30–60 cm and can spread up to 1.5 meters (5 feet) wide. It forms a dense mat of foliage, making it ideal as a ground cover or erosion control plant.Its leaves are ovate, leathery, and dark green, often retaining their color throughout mild winters. However, in colder climates, the plant may behave as a semi-evergreen or even die back to the ground, re-sprouting from the roots in spring.

The highlight of this plant is undoubtedly its flowers—large, cup-shaped, and a bright golden-yellow. Each blossom spans 7–10 cm across and features five petals surrounding a dense tuft of long, showy stamens, giving the flower a “sunburst” appearance. Blooming occurs profusely from early summer through late autumn.In summary, Hypericum calycinum is a shining star among ground cover plants. With its low-maintenance nature, stunning golden blooms, and ecological benefits, it's a valuable addition to a wide range of gardens—from wildflower meadows and cottage gardens to urban landscapes and institutional grounds.