Calendula (pot marigold) is a cool-season flower with medicinal properties and cheerful blooms.
Zone 6A has a moderate growing season. Most crops do well here with proper timing around frost dates.
Good companions: tomatoes, asparagus, virtually everything
Avoid planting near: none — calendula is a universal garden friend
Flowering in 45-60 days from seed; harvest when fully open
USDA Hardiness Zone 6A has an average last spring frost around Apr 21 and first fall frost around Oct 15. 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.