Hypericum Tetrapterum

Hypericum tetrapterum, commonly known as square-stalked St. John’s-wort, is a charming perennial with its distinctive square stems and ornamental qualities. Typically reaching heights of 30 to 90 centimeters (12 to 35 inches), this plant features clusters of bright yellow, five-petaled flowers with numerous stamens. The flowers bloom in mid to late summer, creating a vibrant…