3 (7)m, Canary St. John's Wort is the tallest and among the most impressive of all Canary Hypericum species. Native of open spots in rocky soils in the upper succulent zone on the western Canaries and Gran Canaria. Makes dense racemes, packed with bright yellow flowers above broadly lanceolate to elliptical, glossy, fresh green leaves. Easy in any rich, well drained soil in a sunny spot, keep plants frostfree in winter at a minimum of some 12°C. VI-VIII.