Choosing a Soil pH Meter: Accuracy vs. Cost for Home Gardeners

Soil pH determines nutrient availability. Most plants prefer 5.5-6.5. Measurement options vary wildly in accuracy:

• Litmus strips: ±1 pH unit (6.0 reads 5.0-7.0)—crude but cheap
• Chemical kits: Similar ±1 unit accuracy
• Two-prong electronic probes: Unreliable—readings vary with moisture/fertilizer
• Professional pH pens: ±0.1 unit accuracy ($50-100 from Gemplers)—worth it for serious gardeners

For perennial gardens where pH precision matters, invest in a pen-type meter. For general curiosity, strips suffice.