The Sandoval Extension Master Gardeners offer a variety of classes, for master gardeners and the public. Classes are offered at various times and locations. Some require a fee while others are free. For some classes space may be limited and pre-registration advisable. Check details for specific classes below.

Intern Training Classes

Each year a 15-week training session is offered for those wishing to become Master Gardeners. The classes are held Tuesday afternoons from 1:00 pm – 5:00 pm from January to April. These classes are based on material developed by New Mexico State University and are intended to provide a basic understanding of horticulture. Attendance in these classes is limited to those who have been accepted into the Intern Training Program and Veterans.

Continuing Education

Master Gardeners are required to obtain at least 10 hours of continuing education each year. NMSU professors and others provide Continuing Education classes. Any of the following classes can be counted toward Continuing Education Hours. Veterans may also attend the Intern Classes.

Public Classes

Check our EVENTS CALENDAR for ALL topics and times.

Urban Horticulture Classes: These educational classes are held at the Sandoval County Extension Office the second Wednesday of the month beginning at 2:00 pm (unless noted on the calendar). These classes are free and are open to the public as well as SCMG members.

Gardening with the Masters is a series of gardening lectures held on the second Tuesday of the each month 7:00pm at the Meadowlark Senior Center in Rio Rancho. The lectures are free and open to the public.

4 Seasons Gardening is an afternoon class at Meadowlark Senior Center. The class are held the fourth Thursday of the month from 1:30pm – 3:00pm. The lectures are free and open to the public.

HomeScape Solutions Design Workshop is a unique enhancement to the Master Gardener program,which inspires, empowers, encourages participants to successfully plan and execute their dream landscape. The class for this year has been canceled. We expect to offer the class in 2021. For more information about the class click here.

Special Workshops and Classes may be held throughout the year so be sure to check our EVENTS CALENDAR for ALL topics and times.

Please go to the Resource section of the website to download some of our prior class presentations.

Check our EVENTS CALENDAR for ALL topics and times.

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Upcoming Events

1:30 pm Plant Telehealth Clinic by NMSU
Plant Telehealth Clinic by NMSU
Nov 30 @ 1:30 pm – 5:20 pm
Plant Telehealth Clinic by NMSU
Students from the College of Agricultural, Consumer and Environmental Sciences at New Mexico State University will host a free virtual plant diagnosis clinic for community members with plant health problems later this month. The 2020[...]
3:00 pm Gardening Gift Ideas
Gardening Gift Ideas
Dec 2 @ 3:00 pm – 4:30 pm
Join the Ready, Set, GROW crew as we share our favorite garden-related books, tools, and gear! Please register online at
1:30 pm SEMG Advisory Council meeting vi...
SEMG Advisory Council meeting vi...
Dec 15 @ 1:30 pm – 3:00 pm
Please join the monthly Sandoval Extension Master Gardener Advisory Council meeting. To receive the Zoom invitation please send an email to 
3:00 pm Hybrid Grapes, Hardwood Cuttings...
Hybrid Grapes, Hardwood Cuttings...
Dec 16 @ 3:00 pm – 4:00 pm
Dr. Gill Giese of Extension Plant Sciences will present Hybrid Grapes, Hardwood Cuttings, & Holiday Wine Pairings.  To register for the event go to


Stay informed and up to date on all the latest SEMG news. Read the latest issue of our Newsletter.

Get Involved

There are many Master Gardener projects that need your support. We appreciate all of your efforts!

Become a Master Gardener

Interested in joining our program? Register for the Intern Classes running from January 2020 to May 2020.