Welcome to Longmont's Calendar of Events!
The events listed on this Calendar are City of Longmont sponsored events and is not a comprehensive list of all activities happening around the community. Dates and times of these events are subject to change without notice.
Trash, Recycling, & Composting - Holidays & Events
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Other Community Events
To view other events being held around Longmont, please visit the Longmont visitors bureau events calendar at VisitLongmont.org.
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Musk Thistle Field Day
- Date: 07/19/2019 9:00 AM - 12:00 PM
- Location: Sandstone Ranch
3001 Colorado Highway 119
Longmont, Colorado 80504
- Introduction: Join us for the Musk Thistle Field Day!
Join us for the Musk Thistle Field Day!
Musk thistle (Carduus nutans) is a problematic noxious weed in Boulder County. It can produce thousands of seeds per plant and outcompete native plants -- and it is dropping it's seeds now!
Come spend the morning in a beautiful remnant prairie at Sandstone Ranch and help control musk thistle by cutting seed heads and collecting them in trash bags. We'll also spend time identifying native grasses and wildflowers. Meet in the upper parking lot near the Visitor's Center.