How to Test Soil: DIY vs. Lab Testing

title: "How to Test Soil: DIY vs. Lab Testing"

The question isn't whether to test your soil — it's which type of test to use. A $16 colorimetric test kit from the hardware store tells you something useful in 10 minutes. A $20 university Extension lab test tells you what to actually add, and how much, with results you can defend when someone asks why you limed. They're tools for different purposes.

Every three to four years of serious gardening, a lab test is worth doing. In between, a DIY kit catches pH drift and obvious deficiencies before they affect your plants.

This article contains affiliate links. As an Amazon Associate, we earn from qualifying purchases - at no extra cost to you. We only recommend products we have personally tested or that are the universal first recommendation from university Extension publications. See our full disclosure.

Table of Contents

1. What Soil Tests Measure
2. DIY Test Kits: When They're Enough
3. Lab Testing: What You Get
4. How to Collect a Soil Sample
5. Where to Send Soil for Testing
6. Reading Your Results
7. Frequently Asked Questions

—-