Waukesha County

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Yard & Garden - Resources


Horticulture Helpline 

Have a yard or garden question? Call or e-mail our Horticulture Helpline. This free service allows callers to speak with a trained Master Gardener Volunteer regarding plant, bug or soil questions by phone or email. Telephone hours for the Horticulture Helpline vary by season. Answers to voice mail messages and emails may take up to seven days.

Call (262) 548-7779 Tuesday and Thursday mornings from 9 am to noon, or e-mail questions anytime to uwex1@waukeshacounty.gov.

Diagnosing Plant Problems

Let an Extension Horticulture Educator identify your plant or plant problem. Bring your plant sample or plant insect pest to the Extension Waukesha County office during regular business hours of 8 AM – 4:15 PM. This service is available to the general public. You may print the Horticulture Diagnostic Form, fill it out and bring it with you; or fill it out when you come into the office with your sample. 

There is a $5 charge for this service and diagnostics may take up to seven days.

For a brochure of all of our diagnostic services, open the Horticulture Diagnostic Services Flyer.

For instructions on collecting a "good sample," please call the Horticulture Helpline at (262) 548-7779 or email them at uwex1@waukeshacounty.gov.

We do not identify home insect pests in the office. Please use the Home Insect Identification form below and send it to the lab in Madison free of charge. For instructions on how to submit samples, go to go.wisc.edu/insectlab. Print and fill out the Home Insect Identification Form and send it with your sample. 

Soil Testing 

Having soil problems? Need to know what to add to your soil to make things grow? Have your soil tested by the UW Soil & Forage Analysis Lab in Marshfield for $15 per sample.

What You Get

- Analysis of the current nutrient content of your soil
- Current soil pH
- Recommendation of type and amount of fertilizer to add

Forms and instructions

Soil Testing Kit Instructions
Soil Sample Submission Form
Instructions for Submitting Samples

Helpful Information about soil sampling

Sampling Lawn and garden soils for analysis Pub A2166

If you have further inquiries, please call the UW Soil & Forage Analysis Lab at (715) 387-2523 or go to their website at https://uwlab.soils.wisc.edu/soil/ and click "Lawns and Gardens." 

Additional Yard and Garden Resources

- Wisconsin Horticulture UW-Extension
Extension Horticultural Publication

Need More Help?

Try UW Diagnostic Labs:
- UW Insect Diagnostic Lab
- UW Plant Disease Diagnostic Clinic
- UW Turf Diagnostic Lab

Fees and types of service varies by lab. Check the website for more information

Horticulture staff location:

Extension Waukesha County
Univeristy of Wisconsin Madison
515 W Moreland Blvd AC G22
Waukesha WI 53188
Phone: (262) 548-7775 
Fax: (262) 548-7787
Office Hours: M-F, 8:00 AM – 4:30 PM

Horticulture Helpline Contact Information

Direct Line: (262) 548-7779
Email: uwex1@waukeshacounty.gov

Civil Rights Statement: An EEO/AA employer, University of Wisconsin-Madison Division of Extension provides equal opportunities in employment and programming, including Title VI, Title IX, the Americans with Disabilities Act (ADA) and Section 504 of the Rehabilitation Act requirements.