This page is your source for horticultural programs and class offerings through Jefferson County Extension. You’ll also find many links to useful on-line resources!
The 2019 Jeffco Fair and Festival is August 9-11. We like to encourage the public to enter a project into the Fair Open Class. In order to assist you, we will be providing a free workshop on Tuesday, July 30th from 9:00-11:30 a.m. at the Jefferson County Fairgrounds in the Green Mountain Conference Room on how to choose and prepare an exhibit for the Fair. While this class is free, we need you to call 303-271-6620 by 4 p.m. on July 29th so we have enough materials available.
2020 Master Gardener Recruitment:
If you have an interest in increasing your gardening knowledge and and want the opportunity to join us in 2020, please email Bruce Ide or call him at 303-271-6620 to be placed on the Master Gardener notification list for 2020.
Have a gardening question? Call the Master Gardener hotline (303)271-6632 to get personalized help with your specific situation. You can also email questions and pictures to Master Gardeners from May through September only, at email@example.com.
You can also check our pest update blog for the latest landscape and garden problems reported to us.
Jefferson County Extension has an on-site walk-in plant diagnostic clinic staffed by trained personnel in plant forensics, plant, insect and landscape weed identification. Before bringing a sample to the clinic, check this link for instructions on the type of sample to collect.
Samples may be dropped off anytime from 8 am until 4:30 pm, Monday through Friday. We try to complete your diagnosis within 3 business days. Fees apply.
Demonstration and Research Gardens
Our two on-site gardens are open to the public. The Plant Select garden offers beautiful displays of water-wise and climate tested plants. There’s a kiosk in the garden containing information on the plants and their growing requirements.
The Horticulture Research and Demonstration Garden contains on-going studies including blueberry production, apple tree training, tomato and pepper variety trials and innovative vegetable garden season extension tools. We are also developing an insectary garden to attract beneficial insects.