How to Test Soil pH: 4 Accurate DIY Methods for Gardeners
Wondering how to test soil pH without wasting money on inaccurate meters? I compare 4 DIY methods—from $15 kits to the reliable jar test—and share the calibration trick most gardeners miss.
Ruth Alderman's first vegetable plot produced eleven carrots, a lot of lettuce that bolted in June, and a row of beans that the slugs ate before she did. She had followed a book. She had planted in spring. What she had not accounted for was the clay soil, the shade from the neighbor's hedge, and the fact that a sowing calendar written for a different climate does not transfer neatly to her own.
That first season shaped how she writes. Over twelve years of growing on an allotment and in a backyard, testing varieties, and rebuilding beds that were draining badly, Ruth has learned that most gardening problems are site problems before they are plant problems. Waterlogging, pH, light, and timing explain more failures than pests ever will. With a Certified Master Gardener background and a habit of asking about soil before recommending anything, she writes guides that start with the ground and the calendar, not the seed packet.
Her work covers vegetable garden planning, raised beds, soil testing and improvement, composting, crop rotation, watering and mulching, pruning, seasonal sowing, and pest and disease diagnosis. She is particularly interested in the gap between what gardening books promise and what a first or second season actually delivers.
When she is not writing or digging, Ruth can usually be found crouched in a bed with a soil test kit, arguing gently that the problem is drainage and not slugs, or giving away another bag of courgettes to someone who did not ask for them.
Hand-picked articles written by Ruth Alderman.
Soil & Compost
Wondering how to test soil pH without wasting money on inaccurate meters? I compare 4 DIY methods—from $15 kits to the reliable jar test—and share the calibration trick most gardeners miss.
Soil & Compost
Struggling with waterlogged beds and rock-hard clods? Here's how to improve clay soil using gypsum, organic matter, and timing tricks that actually work — plus the mistakes I see gardeners make every season.
Pests & Problems
Wondering why your organic sprays keep failing? I tested dozens of natural garden pest control methods over ten seasons. Here's what genuinely stops aphids, slugs, and cabbage worms — and the common mistakes that waste your money.
Pests & Problems
Watching slugs shred your spring seedlings overnight? Here's what actually works to stop them—from copper tape myths to nematode timing, based on real garden trials and a few hard lessons.
Vegetable Garden
Wondering how often to water your vegetable garden? It's not a fixed number. Learn my field-tested method based on soil, weather, and plant stage to avoid overwatering and grow healthier crops.
Vegetable Garden
Struggling to get seeds to sprout? Discover the real reasons beginner seed starting fails—from wrong soil mix to weak light—and the exact steps that actually work.