- Type:
- Herb
- Light Exposure:
- Full Sun
- Soil Moisture:
- Dry
- Height:
- 3 to 4 feet
- Project:
- Shoreline Buffer
- Bloom Color:
- Yellow
- Bloom Months:
- July, August, September
- Flooding / Inundation Tolerance:
- Moderate
- Salt Tolerance:
- Medium
- Stress Tolerance:
- Drought Tolerant, General Disturbance
- Herbivore Sensitivity:
- Low
- Behavior (Rate of Spread):
- 2
- Pollinator Value:
- High
- Benefit to Pollinators:
- Adult Food
- Pollinators:
- Bombus, Flies, Honey Bees, Native Bees, Wasps
- Counties:
- Aitkinin, Benton, Blue Earth, Brown, Cass, Chisago, Dakota, Dodge, Fillmore, Goodhue, Hennepin, Houston, Isanti, Itasca, Kanabec, Mille Lacs, Morrison, Mower, Olmsted, Pine, Ramsey, Renville, Rice, Sherburne, Sibley, St. Louis, Stearns, Wabasha, Washington, Winona, Wright
Notes/Description:
Blooming for about three weeks across July and August, Great St. Johnswort is an important nutirition source for pollinators. It thrives in moist, well-drained soils and in partial to full sun. Its foliage is somewhat toxic to mammals and a skin irritant.