Scientific name: Hypericum calycinum
Family: CLUSIACEAE
Common names: “St. John’s wort” “Rose of Sharon”
Plant Type: Evergreen shrub, groundcover
Conditions:
Zone: 5-9
Light: Full sun best – deep shade = no flowers
Exposure: Exposed
Soil: Any
Moisture: Moist well drained – drought
Aesthetic:
Plant Size: H 12-18″ W 80′ spreading groundcover
Leaf and Stem shape: Small, ovate, green leaves
Flower: Golden-yellow, bowl-shaped flowers appear singly or in small clusters near the ends of branches in summer
Pruning: None required but it can be cut low in February to 1″
Maintenance: Low – zero, can be left for years if grown in the right conditions
Landscape use: Groundcover, erosion control, tree and shrub underplanting
Propagate: By cuttings, easily by division and layering, spreads aggressive underground runners
Pests & Disease: Hypericum rust is on the island
Comments: Not the invasive species of St John’s wort (Hypericum perforatum on BC invasive list), but it should be on there considering how vigorously it grows and competes, other none spreading spp. might be a better choice for your mixed flower bed, excellent choice for a contained low maintenance garden though
