Gallatin County, MT Extension Office & Soil Testing Directory
Welcome to the official directory resource for Gallatin County, MT. Connecting local homeowners, urban gardeners, and commercial growers with Montana's land-grant university extension resources, state soil testing lab services, and Master Gardener volunteer clinics.
1. Extension Office Contact Details & Operational Hours
The MSU Extension - Gallatin County serves as the primary educational extension center in Gallatin County. Visit or call during standard operational hours for agricultural advice, soil sample kits, and youth 4-H programs.
| Official Office Name: | MSU Extension - Gallatin County |
| Physical Address: | 901 N. Black Ave, Suite 104, Bozeman, MT 59715 |
| Direct Phone Desk: | (406) 582-3280 |
| Email Contact: | gallatin@montana.edu |
| Office Hours: | Monday – Friday: 8:00 AM – 5:00 PM |
| Official Web Portal: | https://gallatin.msuextension.org/ |
2. Official Soil Testing Laboratory & Pricing
Testing your soil is the single most important step before adding fertilizers or agricultural lime. The official testing laboratory serving Gallatin County is MSU Recommended Partner Soil Testing Labs.
| Official Testing Lab: | MSU Recommended Partner Soil Testing Labs |
| Lab Location: | Submittal forms at Bozeman extension office |
| Routine Sample Fee: | $20 – $35 routine cold-climate soil test |
| Expected Turnaround: | 7 to 10 business days |
| Official Lab Website: | https://soiltest.msuextension.org/ |
How to Collect and Submit a Soil Sample in Gallatin County:
- Pick up a Soil Kit: Pick up official sample boxes and submittal forms at the MSU Extension - Gallatin County (901 N. Black Ave, Suite 104, Bozeman, MT 59715).
- Collect Sub-Samples: Use a clean stainless steel trowel to take 10 to 12 soil cores from a 4-to-6-inch depth across your garden or lawn area.
- Air-Dry: Mix sub-samples in a clean plastic bucket and air-dry on clean paper at room temperature (never use an oven).
- Submit Sample: Return your filled soil box to the extension office or mail directly to MSU Recommended Partner Soil Testing Labs.
3. Master Gardener Volunteer Program & Plant Clinic
The Gallatin County Master Gardeners provides free plant disease diagnostics, lawn care advice, and eco-friendly pest management tips.
| Program Name: | Gallatin County Master Gardeners |
| Plant Clinic Hours: | Tuesday & Thursday: 1:00 PM – 4:00 PM (Note: Plant clinics run seasonally; call office during winter months) |
| Direct Helpline Phone: | (406) 582-3280 |
| Program Portal: | https://gallatin.msuextension.org/horticulture/ |
Volunteer Training: Montana State University high-altitude horticulture levels 1-3.
4. Regional Soil & Growing Snapshot for Gallatin County
USDA Plant Hardiness Zone: Zone 4b / 5a
Natural Soil Profile: Intermountain Alluvial Silt Loam & Gravelly Clay
Popular Local Crops: Barley, wheat, potatoes, cool-season vegetables, native shrubs
Extension Specialist Tip: High elevation seasons are short; test soil in fall to apply fall organic amendments.
5. 🧮 Interactive Soil Amendment Calculator for Gallatin County
Estimate the recommended agricultural limestone or elemental sulfur needed to adjust your garden soil pH based on local Intermountain Alluvial Silt Loam & Gravelly Clay characteristics.
📚 Recommended Extension Guides & Soil Articles
Learn more about interpreting your Gallatin County extension soil test report and managing plant nutrients:
Frequently Asked Questions (Gallatin County Directory)
The MSU Extension - Gallatin County is located at 901 N. Black Ave, Suite 104, Bozeman, MT 59715. You can call their main desk directly at (406) 582-3280 during standard business hours (Monday – Friday: 8:00 AM – 5:00 PM).
Standard soil analysis for Gallatin County garden samples through MSU Recommended Partner Soil Testing Labs costs $20 – $35 routine cold-climate soil test. Check with the office for special sample types.
You can reach the Gallatin County Master Gardeners hotline by calling (406) 582-3280 during plant clinic hours (Tuesday & Thursday: 1:00 PM – 4:00 PM).
Gallatin County falls primarily within USDA Plant Hardiness Zone 4b / 5a. Local soil is characterized as Intermountain Alluvial Silt Loam & Gravelly Clay.
Written & Verified by Sahajul
Verified Author & Founder
Sahajul is an independent agricultural data researcher based in India and founder of LocalSoilLab.com. He specializes in compiling, structuring, and verifying US land-grant university extension services, soil lab testing fee schedules, and county Master Gardener contact directories directly from official .edu and USDA NIFA portals.