Hypericum calycinum 'Brigadoon', commonly known as Brigadoon St. John's Wort, is a hardy groundcover featuring bright golden-yellow foliage that intensifies in full sun, with large yellow flowers blooming in summer. Thriving in full sun to partial shade and well-drained soil, this variety is perfect for borders, slopes, and mass plantings. The vibrant foliage and cheerful blooms of Brigadoon St. John's Wort add a bright and sunny accent to any garden setting.