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Accurate soil temperature readings are one of the simplest yet most powerful tools a gardener can use. After decades of observing plants in Sonoma and similar climates, I’ve learned that measuring soil at the root zone depth—about 4 inches—is far more reliable than air temperature for timing plantings. Seeds and roots respond to the soil…
If there’s one measurement that separates guesswork from consistent success in the garden, it’s soil temperature. After more than 30 years of growing vegetables in California, I’ve learned that planting by the calendar will get you close—but planting by soil temperature gets it right. Seeds and roots respond to the temperature of the soil—not the…
Spring is calling, and the garden is full of subtle signals waiting to be noticed. Today, we’re going on a field trip through your vegetable beds, flower borders, and orchard trees to observe garden phenology—the study of seasonal biological events. Over decades of gardening in Sonoma, I’ve learned that paying attention to what’s happening in…
In vegetable gardening, bridge crops are plants that fill the gap between cool-season and warm-season crops. They thrive in cool-to-warming spring soil—typically when soil temperatures are 50–60°F—allowing gardeners to maintain productivity before heat-loving crops like tomatoes, peppers, or squash can be safely planted. I’ve relied on bridge crops for decades in Sonoma to keep my…
Gardeners often focus on soil moisture, but a more precise metric—Volumetric Water Content (VWC)—tells you exactly how much water is available to plant roots. Over decades of gardening in Sonoma, I’ve found that monitoring VWC can make the difference between healthy, vigorous plants and slow, stressed growth. What is VWC? Volumetric Water Content (VWC) is…
Flowers belong in the vegetable garden just as much as food crops. Beyond their beauty, flowering plants support a living, resilient ecosystem—drawing in pollinators, sheltering beneficial insects, improving yields, and helping keep pests in check. After more than 30 years of vegetable gardening, I’ve found that mixing specific flowers into beds and borders consistently improves…
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