Tri River Area Horticulture & Gardening

Tri River Area Horticulture & Gardening

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We are the Horticulture staff at CSU Extension Tri River Area office, Grand Junction CO. 970-244-1834 UU. For more information, contact Eric Ishiwata.

ENGLISH: In accordance with Federal civil rights law and U.S. Department of Agriculture (USDA) civil rights regulations and policies, the USDA, its Agencies, offices, and employees, and institutions participating in or administering USDA programs are prohibited from discriminating based on race, color, national origin, religion, s*x, gender identity (including gender expression), s*xual orientatio

08/21/2026

Register now for CSU’s online Colorado gardening courses! 🌱

You'll learn everything from plant care to pest management, tree care, and more. Limited spots available! Early bird discount through September 30th. Registration closes October 23rd.

Courses are self-paced and offered once a year. In-person labs offered in Grand Junction. Scholarship applications open through 8/28. Discount available for county staff.

Find more info and register at CSUGreenSchool.org.

08/14/2026

𝐁𝐞𝐜𝐨𝐦𝐞 𝐚 𝐂𝐨𝐥𝐨𝐫𝐚𝐝𝐨 𝐌𝐚𝐬𝐭𝐞𝐫 𝐆𝐚𝐫𝐝𝐞𝐧𝐞𝐫!

Join the Colorado Master Gardener Volunteer Program in the Tri-River Area and turn your passion for gardening into community impact. Applications are open online August 1-31.

Learn more at ColoradoMasterGardener.org or contact 970-244-1834.

08/04/2026

The Tri-River Area Extension office in Montrose is hiring a part-time administrative assistant. Join our team!

‼️ We're Hiring!

The Administrative Assistant, Tri-River Area, performs clerical and administrative work, which includes answering telephones, greeting the public, and providing customer assistance. Position will create a variety of documents, assist/maintain web pages, perform basic accounting duties, maintain files, supply inventory, and many other office functions. Additionally, this position supports the Extension Specialists in the Montrose County office and overall, Tri-River Area.

This is a part-time position, 24 hours/week (0.6 FTE).

This position must be willing and able to work in Montrose, CO, and support the Extension Specialists in the Montrose County office, in addition to the specialists in the Tri-River Area. This position is required to work in the Montrose County office and will not be eligible for hybrid work. The position is fully in-office/in-person.

For more information, please follow this link: https://csusystem.wd12.myworkdayjobs.com/fortcollins_careers/job/Montrose-CO/Administrative-Assistant--Tri-River-Area--06-FTE--Part-time_R2026106075

08/03/2026

Applications for the Colorado Master Gardener Program are open August 1-31. The core training is online, with in-person labs in Grand Junction.

Learn more and apply online at ColoradoMasterGardener.org or at the link in bio.

07/28/2026

We had a great time at the CSU Western Colorado Research Center at Rogers Mesa workshop on diagnosing plant disorders. We learned about some of the diseases and disorders affecting fruits and veggie crops including beet curly top virus (which can infect many crops, including tomato, peppers, beans, potatoes, cucurbits, and also weeds). It seems like we are seeing a lot of that this year.

We also got to feel the squishy stem of a squash plant with fusarium wilt and see the discoloration inside the stem. We also saw other diseases and disorders in the garden and orchard...and, unrelated, got to see a golden eagle!

It can be tricky diagnosing plant problems and we always love an opportunity to learn more and practice.

To find out more about this topic, go to: https://extension.colostate.edu/resources/ or the link in bio.

Video description: People walking in a vegetable garden to listen to a CSU researcher talk about plant disease; books on plant diseases.

07/24/2026

We are *checks calendar* only ONE MONTH away from Green School registration opening!⌛🙌 Sign up for the interest list at https://colostate.az1.qualtrics.com/jfe/form/SV_4GaLUaf5Zac27Gu and you'll be emailed FIRST when registration opens in August 2026 (we love an early bird discount, hbu?)

What is Green School?
🌿 Colorado specific gardening classes.
🌿 14-week online program, offered once each year.
🌿 A mix of self-paced online classes and live web-based review sessions with instruction and Q&A from CSU Extension experts.
🌿 The best time you'll ever have!!

Need we say more?? 🙂‍↔️ (But you can visit CSUGreenSchool.org if you need more info 🙂‍↕️)

07/22/2026

Leafcutter bees (Megachile spp.) are native bees and are important pollinators. They cut leaves of plants to form nest cells in hollow stems or cavities. In our demonstration garden, they commonly use redbud and rose leaves. They are solitary bees about the size of a honeybee. There are LOTS of species of leafcutter bees native to North America.

Instead of thinking of this as “damage,” think of how your plants are supporting native pollinators.

If your plants are essentially being defoliated by leafcutter bee activity, your best option is to cover plants with cheesecloth or loose netting when the bees are most active. Find out more about leafcutter bees at https://extension.colostate.edu/resource/leafcutter-bees/ or the link in bio.

07/21/2026

Pick up some gardening info at the Colorado Master Gardener booth in Friendship Hall at the Montrose County Fair this week.

07/21/2026

Coming up in Hotchkiss!

Reminder about the Diagnosing Plant Disorders Workshop this Thursday from 1-3pm. Please RSVP https://col.st/AEadv

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Location

Category

Telephone

Address


2775 Highway 50
Grand Junction, CO
81503

Opening Hours

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