How to Identify Poison Hemlock in Winter – Super Easy!

Poison hemlock, Conium maculatum, is an invasive plant that is also highly toxic. The best time to control poison hemlock is when it is in the young rosette stage and the best time to find and identify it at this stage is late fall until early spring. In this video I show how to identify winter poison hemlock, where it may be found, and have an interesting bonus fact about it.

Have you seen poison hemlock? Let us know about your observation in the comments!

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Chapters:
0:00 Poison Hemlock, Conium maculatum Background
0:34 Poison Hemlock Can be a Biennial or Winter Annual Plant
0:57 Poison Hemlock Basal Rosette
1:14 Poison Hemlock Leaf Description
1:37 Where Poison Hemlock Tends to Grow
1:48 Why Finding Poison Hemlock in the Winter is Important
2:12 How Poison Hemlock Got to North America

[ElkeCombs]

YES, YES, YES to a follow up video on how to remove this stuff!

[lavonnefitts]

Yes, please more on how to control. I walked 3 miles of a city trail in Waynesboro, Virginia on New Year’s Day. The green rosettes were everywhere along the paved path. I want to go back to be sure this was poison hemlock, if so then Assisst to irradicate as much and as soon as possible with the City!.
Thank you!
I will watch for your follow-up😊

[sheila]

Would you do a video on best ways to remove Poison Hemlock in winter? Are gloves needed? Does it have a long tap root? How much of the root must be removed to kill the plant?

[johnjustice]

Subscribed because you are a kentucky boy as well

[davehendricks]

Now I have to look for those rosettes. I’m wondering if that’s these big plants growing on my property.

[dylanmatros]

I would like to see a vol version on how to get rid of poisoned hammock.

[matta]

Do you know if the winter "greenness" of poison hemlock can distinguish it from cow parsley and spreading hedge parsley?

[TheBarefootedGardener]

Difference Poison hemlock vs. Queen Anne’s Lace?

[GeologyDude]

I read that hemlock was used to kill condemned prisoners in ancient Greece. Socrates died from it.

[luke]

I just noticed my entire yard is this here in plano texas. What do I do