Heidi Devine points out Johnson Grass an unwanted species

Field Review Notes, Miller Park, Lebanon, Ohio: July 6, 2012

By Heidi Devine, ODNR, Division of Wildlife

 1) Small Prairie Plot (North Prairie): Seed donated by Susan Fry

  • This stand is dominated by prairie forbs (wildflowers) including Purple coneflower, Black-eyed Susans, Partridge pea, and Illinois bundleflower.
  • Some clumps of prairie grass are coming in and are most likely remnants of the previously planted tallgrass prairie that survived the herbicide applications.
  • Weed competition is low so no management is suggested at this time.  Continue to monitor.

  2) Large Prairie Plot (South Prairie): Seed Source-Hamilton County Park District

  • This stand currently has more prairie grasses than forbs, most of which seem to be clumps that were from the previously planted tall grass prairie that survived the herbicide applications.
  • Some wildflowers are present including Black-eyed Susans, Milkweed, and  Lespedeza species.
  • Other forbs present include Canada thistle, Dogbane, and Horse nettles.
  • This prairie is dominated by foxtail and annual non-prairie grass.  Currently the foxtail is not a threat to the prairie project and may be protecting new prairie seedlings from the extreme sun and heat conditions occurring this summer.
  • The only management recommendations at this time would be to spot treat (mow or weed-eat or even hand pull) Canada thistle.  This should be done soon before it goes to seed (which is wind-blown).  Continue to monitor.