DELAWARE, Oh. – The Delaware Public Health District is alerting the public to the dangers of poison hemlock, one of North America’s most toxic plants. This tall, invasive species is identifiable by its purple-speckled stems and fern-like leaves, and is often mistaken for wild carrot or Queen Anne’s lace. 

Toxic Effects:
Contact with poison hemlock can cause serious skin irritation, and inhaling fumes from burning the plant is extremely hazardous. Residents are urged not to touch, mow, or burn the plant.

Safe Removal:
To safely eliminate poison hemlock:

  • Wear protective clothing, including gloves, long sleeves, and eye protection.
  • Remove by hand or dig when soil is moist and before the plant flowers.
  • Place all plant material in sealed plastic bags and dispose in the trash.
  • Do not compost or burn.
  • Thoroughly clean tools and clothing after use.
  • Consider herbicide application in early spring or late fall.

Support & Resources:
For assistance identifying or removing poison hemlock, contact:

  • OSU Extension Offices: www.extension.osu.edu/home
  • Ohio Department of Agriculture: www.agri.ohio.gov