Lettuce seeds don’t die in July heat—they enter a dormant state called thermoinhibition when temperatures exceed 25°C. Discover why this ancestral survival mechanism sabotages summer sowings and the surprisingly simple refrigerator method that growers use to trick seeds into sprouting on schedule.
For years, a gardener struggled with bitter cucumbers every July until a veteran neighbor revealed the culprit: inconsistent watering during peak heat. The solution isn’t complicated—it’s a disciplined schedule paired with proper mulching that keeps soil moisture stable and prevents the stress compound that makes cucumbers taste like aspirin.
That bitter taste concentrated near the stem isn’t bad luck—it’s your cucumber plant’s stress response to inconsistent watering. Learn the science behind cucurbitacins, why drought and heat trigger their production, and exactly how to prevent this common gardening mistake.