Conium maculatum, commonly known as hemlock (British English) or poison hemlock (in North America), is a highly poisonous flowering plant and a nitrophile weed species in the carrot family …

Feb 14, 2026 · The bloom time of poison hemlock varies greatly from year to year depending on weather conditions. Between May and August, white flower clusters, either flat-topped or slightly convex like …

Mar 7, 2026 · Hemlock is a highly poisonous plant that kills by paralyzing your muscles, including the ones you use to breathe. It contains toxic compounds that block the signals between your nerves …

Jun 3, 2026 · Poison hemlock is blooming across much of the U.S. Learn how to identify this toxic plant, where it grows, and how to remove it safely.

May 20, 2026 · Don’t let its delicate white blooms fool you — poison hemlock is highly toxic and can be deadly. Knowing how to identify and control this toxic plant can help you avoid potentially dangerous …

As March comes to a close, Hemlock Semiconductor reflects on a month of community impact, growth and celebration. In honor …

Hemlock poisoning can occur if you accidentally ingest poison hemlock. Symptoms can range from vomiting to seizures to respiratory failure. There’s no antidote for hemlock poisoning. Your healthcare …