Wake County, NC Extension Office & Soil Testing Directory
Welcome to the official directory resource for Wake County, NC. Connecting local homeowners, urban gardeners, and commercial growers with North Carolina's land-grant university extension resources, state soil testing lab services, and Master Gardener volunteer clinics.
1. Extension Office Contact Details & Operational Hours
The NC State Extension - Wake County Center serves as the primary educational extension center in Wake County. Visit or call during standard operational hours for agricultural advice, soil sample kits, and youth 4-H programs.
| Official Office Name: | NC State Extension - Wake County Center |
| Physical Address: | 4001 E. Carya Drive, Raleigh, NC 27610 |
| Direct Phone Desk: | (919) 250-1100 |
| Email Contact: | wake@ncsu.edu |
| Office Hours: | Monday – Friday: 8:30 AM – 5:00 PM |
| Official Web Portal: | https://wake.ces.ncsu.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 Wake County is NCDA&CS Agronomic Services Soil Testing Laboratory.
| Official Testing Lab: | NCDA&CS Agronomic Services Soil Testing Laboratory |
| Lab Location: | 4300 Reedy Creek Road, Raleigh, NC 27607 |
| Routine Sample Fee: | $0 (Free April 1 to Nov 30) |
| Expected Turnaround: | 5 to 10 business days |
| Official Lab Website: | https://www.ncagr.gov/agronomi/ |
How to Collect and Submit a Soil Sample in Wake County:
- Pick up a Soil Kit: Pick up official sample boxes and submittal forms at the NC State Extension - Wake County Center (4001 E. Carya Drive, Raleigh, NC 27610).
- 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 NCDA&CS Agronomic Services Soil Testing Laboratory.
3. Master Gardener Volunteer Program & Plant Clinic
The Extension Master Gardener Volunteers of Wake County provides free plant disease diagnostics, lawn care advice, and eco-friendly pest management tips.
| Program Name: | Extension Master Gardener Volunteers of Wake County |
| Plant Clinic Hours: | Monday – Friday: 9:00 AM – 12:00 PM (Note: Plant clinics run seasonally; call office during winter months) |
| Direct Helpline Phone: | (919) 250-1084 |
| Program Portal: | https://wake.ces.ncsu.edu/master-gardener-program/ |
Volunteer Training: 40 hours of NC State Extension faculty instruction.
4. Regional Soil & Growing Snapshot for Wake County
USDA Plant Hardiness Zone: Zone 7b / 8a
Natural Soil Profile: Piedmont Cecil Clay Loam (Naturally acidic pH 5.0 - 5.5)
Popular Local Crops: Sweet potatoes, tomatoes, strawberries, bermudagrass, fescue
Extension Specialist Tip: North Carolina state soil testing is free during off-peak months; apply dolomitic lime to supply magnesium.
5. 🧮 Interactive Soil Amendment Calculator for Wake County
Estimate the recommended agricultural limestone or elemental sulfur needed to adjust your garden soil pH based on local Piedmont Cecil Clay Loam (Naturally acidic pH 5.0 - 5.5) characteristics.
📚 Recommended Extension Guides & Soil Articles
Learn more about interpreting your Wake County extension soil test report and managing plant nutrients:
Frequently Asked Questions (Wake County Directory)
The NC State Extension - Wake County Center is located at 4001 E. Carya Drive, Raleigh, NC 27610. You can call their main desk directly at (919) 250-1100 during standard business hours (Monday – Friday: 8:30 AM – 5:00 PM).
Standard soil analysis for Wake County garden samples through NCDA&CS Agronomic Services Soil Testing Laboratory costs $0 (Free April 1 to Nov 30). Check with the office for special sample types.
You can reach the Extension Master Gardener Volunteers of Wake County hotline by calling (919) 250-1084 during plant clinic hours (Monday – Friday: 9:00 AM – 12:00 PM).
Wake County falls primarily within USDA Plant Hardiness Zone 7b / 8a. Local soil is characterized as Piedmont Cecil Clay Loam (Naturally acidic pH 5.0 - 5.5).
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.