Protecting Napa Cabbage from Heat, Bolting, and Sun Stress
Napa cabbage is a cool-season crop that grows best in steady, mild temperatures. After more than 30 years growing brassicas in my Sonoma Valley garden—where spring heat can arrive suddenly—I’ve learned that protecting Napa cabbage from heat stress and premature bolting is essential for producing tight, sweet, fully wrapped heads. This guide blends university-backed research…
