Dr. Amanda Foster

I learned the hard way that guessing soil temperature is a recipe for dead seedlings. Two winters ago, I sowed tomato seeds in what I thought was “warm enough” soil and watched germination stall at 30%. That is when I bought my first soil thermometer, and it changed everything about how I start seeds each … Read more

I tested compost thermometers in my backyard bins for two seasons, and the difference between guessing and knowing your pile temperature is night and day. A good compost thermometer takes the mystery out of pile management, telling you exactly when to turn, when to add water, and when your compost is finally ready to use. … Read more

After three seasons of stunted tomato harvests in my raised beds, I finally admitted I was guessing when it came to soil health. I had been dumping compost and fertilizer without knowing what my plants actually needed, and the results spoke for themselves. That is when our team decided to put the best soil test … Read more

I learned the hard way that guessing soil nutrients is a recipe for dead plants. After losing an entire tomato crop to salt buildup, I started using a soil salinity and EC meter every week. The difference was instant. My yields jumped 30% the first season, and I stopped wasting money on fertilizers my soil … Read more

When your tomatoes start dropping blossoms and your lawn turns patchy for no obvious reason, the problem usually lives underground. I spent the last growing season testing eight of the most popular soil test kits on the market to find out which ones actually help you diagnose plant problems before they spiral out of control. … Read more

Blueberries need acidic soil between pH 4.5 and 5.5 to actually thrive, and if your soil drifts above that range the leaves yellow, the fruit shrinks, and the bush quietly gives up. Standard lawn-and-garden soil test kits are calibrated for neutral-to-slightly-acidic dirt, which is why I kept getting useless readings on my own blueberry beds … Read more

If you draw your drinking water from a private well, you’re the only one responsible for keeping it safe. Unlike municipal water, well water isn’t regulated by the EPA, and what comes out of your tap can change with the seasons, the rain, and whatever’s happening on the land around you. I’ve spent weeks comparing … Read more

A few years ago, I ran a cheap strip test on my kitchen tap and felt good about the result. Then I sent the same water to a certified lab and learned the strip had completely missed 14 parts per billion of lead. That single experience changed how I think about water testing. Strip tests … Read more

I have been testing water quality for over a decade, from reef tanks in my garage to community well-water screenings for our local science group. The single tool I reach for more than any other is a TDS meter, because total dissolved solids is the fastest way to know whether your water is actually doing … Read more

When I first started researching what was actually in my tap water, I was shocked by how much municipal water quality reports leave out. Annual Consumer Confidence Reports tell you what the city found at the treatment plant, not what comes out of your faucet after traveling through decades-old pipes. That is where a professional … Read more