I left my cauliflower heads uncovered through the 28°C week just to give them light: when I pulled the leaves back on Sunday, it was already too late
A week of 28°C temperatures and uncovered cauliflower heads led to yellow, grainy curds instead of pristine white florets. The mistake: exposing the developing curd to direct sunlight during a heat spike, triggering chlorophyll production and premature flowering. Here’s what went wrong and how to fix it next season.