University of Idaho Extension, Canyon County Master Gardeners

University of Idaho Extension, Canyon County Master Gardeners Providing research-based information to help you successfully garden and landscape in Southwest Idaho! Happy gardening!

University of Idaho Extension Master Gardeners in Canyon County are committed to helping individuals and communities grow by providing research based information. Our horticulture areas of specialization include sustainable landscapes, home garden vegetable production, youth gardening and volunteer development. With the assistance of the Master Gardener Program Coordinator, our horticulture Extension Educator directs the program. Training for the Canyon County Master Gardener and Advanced Master Gardener is the equivalent of a three credit college class. A Sixteen week 40 hour classroom training teaching about the science of horticulture is followed up by a 40 hour practicum where volunteers apply what they learned in their training by sharing their research based knowledge with their communities. With the help of Master Gardener Volunteers, we provide no-cost horticulture education to thousands of children each year through Junior Master Gardener programs at the Nampa, Caldwell and Middleton public libraries and provide thousands of consumer clientele with research-based gardening expertise and problem solving, free of charge at our Plant Clinics and information booths. If you are interested in becoming an Idaho Master Gardener Volunteer, contact the University of Idaho Extension Office in Canyon County at 208-459-6003.

Join 2026 Idaho Home Garden Tips tonight, September 22 @ 7pm MT, for the FREE zoom class,Class will be all about sweet c...
09/22/2026

Join 2026 Idaho Home Garden Tips tonight, September 22 @ 7pm MT, for the FREE zoom class,Class will be all about sweet corn- selecting varieties, what varieties you can and can't grow together and growing corn. ~dlc
https://uidaho.zoom.us/j/92616335377

SENIORS 60+  -- We are on our LAST 2 weeks of the   during the Caldwell "Farm to Fork" Market at Indian Creek Plaza toni...
09/22/2026

SENIORS 60+ -- We are on our LAST 2 weeks of the during the Caldwell "Farm to Fork" Market at Indian Creek Plaza tonight. Be sure to come down, pick up your $10 voucher and take home FREE produce from the 2c Master Gardener sponsored booth! ~dlc

It's about that time of year again, Fall Mulching Click below for Why, What kind and When ~kshttps://bit.ly/WhyMulch    ...
09/22/2026

It's about that time of year again, Fall Mulching
Click below for Why, What kind and When ~ks

https://bit.ly/WhyMulch

Join the 2C Master Gardeners as they present a FREE class on Seed Saving at the Nampa Public Library on Wednesday, Septe...
09/21/2026

Join the 2C Master Gardeners as they present a FREE class on Seed Saving at the Nampa Public Library on Wednesday, September 23 from 6-7pm. ~dlc
Register at bit.ly/4qBhy6D

Have you ever come across Lilac-Ash Borer damage like this? The 2C Master Gardeners were on a site visit and saw this gr...
09/21/2026

Have you ever come across Lilac-Ash Borer damage like this? The 2C Master Gardeners were on a site visit and saw this green ash tree that was heavily infested by lilac-ash borer (round exit holes). To learn more, see the link below. ~dlc
https://bit.ly/LilacAshBorerPest

You will not want to miss this special screening of "The Extraordinary Caterpillar", at the Library! at Hillcrest in Ada...
09/20/2026

You will not want to miss this special screening of "The Extraordinary Caterpillar", at the Library! at Hillcrest in Ada County on Tuesday, September 22 from 6-7:30pm! This is a FREE event, but registration is required through Ada Soil & Conservation District. ~dlc
Register at: https://bit.ly/CaterpillarFilm.

  ~ks
09/20/2026

~ks

Thinking about burning that fall brush pile?Fall can be a good time to burn pruned branches and other clean woody garden...
09/20/2026

Thinking about burning that fall brush pile?
Fall can be a good time to burn pruned branches and other clean woody garden debris—but a cool morning doesn’t necessarily mean it’s a good burn day.
In Idaho, a free burn permit is required for burning outside city limits from May 10 through October 20. Cities and local fire districts may have additional rules, so check locally before lighting.
Before you burn:
• Check for current fire restrictions and air-quality restrictions.
• Choose a calm day when the surrounding vegetation is not dry.
• Burn clean, dry natural vegetation—not garbage, plastics, treated lumber or construction debris.
• Keep water and a shovel nearby and clear combustible material away from the pile.
• Stay with the fire until it is completely out—and check it again later.
• Avoid letting piles smolder. Smoke that settles near the ground is a sign conditions are not good for burning.
Idaho DEQ recommends burning dry vegetation between 11 a.m. and 4 p.m. and when winds are under 12 mph to help reduce smoke impacts.
And remember: having a permit doesn’t necessarily mean today is a good day to burn. Check conditions each time.
Sometimes the best burn day is simply another day. `bk
https://burnpermits.idaho.gov/

Address

501 Main Street
Caldwell, ID
83605

Opening Hours

Monday 8am - 5pm
Tuesday 8am - 5pm
Wednesday 8am - 5pm
Thursday 8am - 5pm
Friday 8am - 5pm

Telephone

+12084596003

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