Great Canada St. John's Wort

About Great Canada St. John's Wort

Great Canada St. John's Wort is a charming and understated native perennial that excels in wet, sunny environments. This slender plant typically grows 6 to 24 inches tall, featuring upright stems and narrow, lance-shaped leaves that often take on a reddish tint in late summer. From July through September, it produces clusters of small, five-petaled yellow flowers at the tips of its branches. While the individual blooms are modest, their bright color and the plant's delicate structure make it a lovely addition to wetland plantings. Native across much of the northern United States and Canada, it is frequently found in marshes, wet meadows, and along sandy shorelines. It serves as an important resource for small native bees and other pollinators during the peak of summer. In the garden, it is best suited for consistently moist to wet soils in full to partial sun. It is a rhizomatous species, allowing it to slowly spread and form small colonies, making it a great choice for stabilizing soil in rain gardens or along the edges of ponds.