🌿 Morphology
🌞 Growing conditions
🌍 Origin and family
🌾 Uses
Warning: Despite the care taken in writing this sheet, it is essential to cross-reference sources before using or consuming any plant. When in doubt, consult a qualified professional
Permaculture uses
Hypericum patulum has potential as an ornamental plant in permaculture systems, attracting pollinators. Some Hypericum species have known medicinal properties, particularly for treating mild depression and skin wounds, although the specific benefits of H. patulum require further research. It can also serve as a ground cover in certain areas. Its ability to spread and self-seed needs careful management to prevent it from becoming invasive. Cultivars such as 'Hidcote' are popular for their showy flowers.
Permapeople description
A shrub with golden-yellow flowers and reddish stems.
Botanical description
Hypericum patulum is a deciduous or semi-evergreen shrub belonging to the Hypericaceae family. It typically grows to a height of 1-2 meters. The plant features opposite, oblong to elliptic leaves that are usually 2-5 cm long. Its bright yellow, cup-shaped flowers are borne in terminal cymes. Each flower has five petals and numerous stamens. The fruit is a capsule that releases numerous small seeds. It is native to parts of Asia, including China and Japan. Hypericum patulum prefers well-drained soil and full sun to partial shade.
Companion planting
Hypericum generally benefits from being planted near plants that attract pollinators, such as lavender or other flowering herbs. Avoid planting near aggressive root systems that might compete for resources. Because it prefers full sun, avoid overly shading it with taller companions. No specific detrimental companion plants are commonly documented, but observe for competition.
Propagation methods
Propagation can be achieved through seeds, cuttings (both softwood and semi-hardwood), and division of established clumps. Seed germination can be enhanced by cold stratification. Cuttings should be taken in late spring or early summer and rooted in a well-draining medium. Division is best done in the spring or fall.
History and traditions
While specific historical uses of Hypericum patulum may be less documented than Hypericum perforatum (common St. John's Wort), other Hypericum species have been used traditionally for wound healing, treatment of nerve pain, and as a general tonic in various cultures. The genus name 'Hypericum' is derived from the Greek 'hyper' (above) and 'eikon' (picture), referring to the practice of hanging the plant above images to ward off evil. The association with St. John stems from its flowering around St. John's Day (June 24th).
Usage calendar
Flowering typically occurs from mid-summer (June-July) into early autumn (September). Seeds ripen in late summer or early autumn. Cuttings are best taken in late spring or early summer. Division is best carried out in spring or autumn. Pruning, if needed, should be done after flowering to maintain shape and encourage bushier growth. Planting can occur in spring or fall.