Calendula (pot marigold) is a cool-season flower with medicinal properties and cheerful blooms.
Zone 7B enjoys a long growing season. You can often get two plantings of cool-season crops (spring and fall).
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 7B has an average last spring frost around Mar 28 and first fall frost around Nov 3. 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.