Here are upcoming gardening events through the Ohio State University Mahoning County Extension Office. Contact the Extension Office, 490 S. Broad St., Canfield, at 330-533-5538.

Plant and Pest Diagnostic Clinic hours vary during the winter months. Stop by to ask questions or drop off samples. Or call any day at 330-533-5538.

For information, visit http://go.osu.edu/mahoningclinic. For a complete list of events, visit https://mahoning.osu.edu/events.

Master Gardener Volunteer Open House

What: A drop-in meet-and-greet with Mahoning and Columbiana County Master Gardeners to learn about becoming a Master Gardener Volunteer and share your enthusiasm for gardening with others.

When: 3 to 5 p.m. Jan. 16

Where: OSU Extension-Mahoning County, 490 S. Broad St., Canfield

Cost: Free

Info: 330-533-5538; www.go.osu.edu/mgvopenhouse2024

Ohio Certified Volunteer Naturalist Training

What: This 12-week course covers geology, soils, mammals, reptiles, forestry, entomology, ornithology, mammals and more. Participants will hear from local experts and interact with nature. Course is eight Tuesday evenings and four Saturdays. Completion earns Ohio Certified Volunteer Naturalist Certificate.

When: Starts Feb. 20; applications due Jan. 5

Location: OSU Extension-Mahoning County, 490 S. Broad St., Canfield, plus four onsite locations at nature centers and parks.

Cost: $225 (if accepted to course)

Info: Find details and application at https://go.osu.edu/joinocvn

Master Gardener Volunteer Training

What: This 12-week course covers everything from fruit to perennials and soils to herbs. Learn all about gardening and the volunteer program that supports horticulture throughout Mahoning and Columbiana counties.

When: Starts Feb. 20; applications due Jan. 19

Where: OSU Extension-Mahoning County, 490 S. Broad St., Canfield

Cost: $225

Info: Find details and application at https://go.osu.edu/joinmgv

Naturalist Series: You Otter Know

What: Learn more about river otters in Ohio — who they are, what they do, what we should be concerned about and what we can do.

When: 6:30 p.m. Feb. 21

Where: OSU Extension-Mahoning County, 490 S. Broad St., Canfield

Cost: $5 or $30 for the entire Naturalist Series

Info and registration: 330-533-5538; https://go.osu.edu/otters02-21

Naturalist Series: Skulls Tell It All

What: Study mammal skulls — shapes, eye socket placement, dentition and other clues — that give us evidence of activity, food sources, territory and mating habits.

When: 6:30 p.m. March 20

Where: OSU Extension-Mahoning County, 490 S. Broad St., Canfield

Cost: $5 or $30 for the entire Naturalist Series

Info and registration: 330-533-5538; https://go.osu.edu/skulls03-20

Naturalist Series: Update on Ticks in Ohio

What: Learn the state of ticks in Ohio and how you can keep yourself, your family and your animals tick safe.

When: 6:30 p.m. April 17

Where: OSU Extension-Mahoning County, 490 S. Broad St., Canfield

Cost: $5 or $30 for the entire Naturalist Series

Info and registration: 330-533-5538; https://go.osu.edu/ticks04-17

Naturalist Series: Common Northeast Ohio Birds

What: This program will help you identify and find common birds in the northeast Ohio region and what seasons you can expect them. From birds found in your own backyard to the ones found in their natural habitats.

When: 6:30 p.m. May 29

Where: OSU Extension-Mahoning County, 490 S. Broad St., Canfield

Cost: $5 or $30 for the entire Naturalist Series

Info and registration: 330-533-5538; https://go.osu.edu/ohiobirds05-29

Naturalist Series: What You Didn’t Learn Watching ‘Batman’

What: Join Marne Titchenell, Extension Wildlife Program director with The Ohio State University, as she discusses the lives of Ohio bats — where they live, how they spend their time, their ecology, threats to their populations and how to help Ohio’s bat populations.

When: 6:30 p.m. June 26

Where: OSU Extension-Mahoning County, 490 S. Broad St., Canfield

Cost: $5 or $30 for the entire Naturalist Series

Info and registration: 330-533-5538; https://go.osu.edu/bats06-26