Class 3 · Containment
Poison Hemlock
Conium maculatum
Widely spread. Effort goes to new or expanding populations; established stands are managed by whatever method the weed control authority approves.
- May - Jul
- Treatment window
- Class 3
- Utah designation
What we know
Class 3: containment
Widely spread. Effort goes to new or expanding populations; established stands are managed by whatever method the weed control authority approves.
Treatment on poison hemlock works best may - jul. A full profile for this species is still being written. Until it is here, the USU Extension field guide carries identification detail, and we would rather hear from you than have you guess.
At a glance
- Common name
- Poison Hemlock
- Scientific name
- Conium maculatum
- Utah class
- 3 - Containment
- Treatment window
- May - Jul
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