Determining the best planting schedule for winter crops in a cold weather greenhouse depends on the local climate, the greenhouse’s insulation, and the specific crops being grown. Cold-hardy vegetables like cabbage, leeks, and artichokes should be planted in late summer or early fall to establish strong roots before daylight hours shorten.
The time from planting to maturity must be considered, as most plants grow more slowly in winter due to reduced sunlight. Counting back from the first frost date and factoring in slower growth rates helps determine the right planting window. Using row covers or supplemental heat can extend the planting season, allowing for later starts.
