Collard greens are a Southern staple that’s tougher than kale and more heat-tolerant than most cool-season greens. A light frost sweetens the leaves significantly.
Zone 2A has a short growing season — start seeds indoors when possible and use season-extending techniques like cold frames and row covers.
Good companions: onions, garlic, aromatic herbs (dill, chamomile)
Avoid planting near: strawberries, grapes, tomatoes
60-75 days from transplant; harvest leaves when they reach 8-10 inches
USDA Hardiness Zone 2A has an average last spring frost around May 30 and first fall frost around Sep 1. All planting dates above are calculated from these frost dates. Your specific location may vary — check with your local extension office for the most accurate dates.