Sedgwick County, KS Extension Office & Soil Testing Directory
Welcome to the official directory resource for Sedgwick County, KS. Connecting local homeowners, urban gardeners, and commercial growers with Kansas's land-grant university extension resources, state soil testing lab services, and Master Gardener volunteer clinics.
1. Extension Office Contact Details & Operational Hours
The K-State Research and Extension - Sedgwick County serves as the primary educational extension center in Sedgwick County. Visit or call during standard operational hours for agricultural advice, soil sample kits, and youth 4-H programs.
| Official Office Name: | K-State Research and Extension - Sedgwick County |
| Physical Address: | 7001 W. 21st Street North, Wichita, KS 67205 |
| Direct Phone Desk: | (316) 660-0100 |
| Email Contact: | sgextension@ksu.edu |
| Office Hours: | Monday – Friday: 8:00 AM – 5:00 PM |
| Official Web Portal: | https://www.sedgwick.k-state.edu/ |
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 Sedgwick County is K-State Soil Testing Laboratory.
| Official Testing Lab: | K-State Soil Testing Laboratory |
| Lab Location: | 2308 Throckmorton Hall, 1711 Claflin Rd, Manhattan, KS 66506 |
| Routine Sample Fee: | $15 per routine garden soil sample |
| Expected Turnaround: | 5 to 7 business days |
| Official Lab Website: | https://www.agronomy.k-state.edu/services/soiltest/ |
How to Collect and Submit a Soil Sample in Sedgwick County:
- Pick up a Soil Kit: Pick up official sample boxes and submittal forms at the K-State Research and Extension - Sedgwick County (7001 W. 21st Street North, Wichita, KS 67205).
- 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 K-State Soil Testing Laboratory.
3. Master Gardener Volunteer Program & Plant Clinic
The Sedgwick County Master Gardeners provides free plant disease diagnostics, lawn care advice, and eco-friendly pest management tips.
| Program Name: | Sedgwick County Master Gardeners |
| Plant Clinic Hours: | Monday – Friday: 9:00 AM – 4:00 PM (Note: Plant clinics run seasonally; call office during winter months) |
| Direct Helpline Phone: | (316) 660-0190 |
| Program Portal: | https://www.sedgwick.k-state.edu/gardening-lawn/ |
Volunteer Training: 40 hours of K-State faculty instruction.
4. Regional Soil & Growing Snapshot for Sedgwick County
USDA Plant Hardiness Zone: Zone 6b
Natural Soil Profile: Great Plains Silt Loam & Clay Loam
Popular Local Crops: Wheat, corn, tomatoes, squash, tall fescue grass
Extension Specialist Tip: Kansas soils benefit from mulch to conserve soil moisture during hot summer dry spells.
5. 🧮 Interactive Soil Amendment Calculator for Sedgwick County
Estimate the recommended agricultural limestone or elemental sulfur needed to adjust your garden soil pH based on local Great Plains Silt Loam & Clay Loam characteristics.
📚 Recommended Extension Guides & Soil Articles
Learn more about interpreting your Sedgwick County extension soil test report and managing plant nutrients:
Frequently Asked Questions (Sedgwick County Directory)
The K-State Research and Extension - Sedgwick County is located at 7001 W. 21st Street North, Wichita, KS 67205. You can call their main desk directly at (316) 660-0100 during standard business hours (Monday – Friday: 8:00 AM – 5:00 PM).
Standard soil analysis for Sedgwick County garden samples through K-State Soil Testing Laboratory costs $15 per routine garden soil sample. Check with the office for special sample types.
You can reach the Sedgwick County Master Gardeners hotline by calling (316) 660-0190 during plant clinic hours (Monday – Friday: 9:00 AM – 4:00 PM).
Sedgwick County falls primarily within USDA Plant Hardiness Zone 6b. Local soil is characterized as Great Plains Silt Loam & Clay Loam.
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.