That said, as night temperatures drop, growth will slow down significantly. Putting the plants under cover (like a mini greenhouse or even a clear plastic tunnel) at night can definitely help retain warmth and protect against sudden cold snaps or frost. Just make sure there’s still airflow during the day to avoid mildew.
I’ve had similar concerns in a cooler climate, and what really helped me was switching to faster-maturing varieties earlier in the season. If you’re planning ahead for next year, Evergreen Botany has some great edible plant options and tips for cool-season transitioning — especially for small-space or climate-conscious growers.
Wishing your rock melons and cukes the best — fingers crossed for a late-season harvest!
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