What is soil pH and why does it matter?
A measure of how acidic or alkaline soil is, on a scale from 0 to 14. Most garden plants prefer slightly acidic to neutral soil (6.0–7.0). Soil pH affects nutrient availability.
"Test your soil pH before planting — if it's too high, add sulfur to lower it."
Related Terms
Put this knowledge to use
Sign up for free to get personalized planting timelines, frost date alerts, and growing guides for your zone.