Chamomile is a gentle herb famous for calming tea. German chamomile is annual; Roman is perennial.
Zone 4A has a short growing season — start seeds indoors when possible and use season-extending techniques like cold frames and row covers.
Good companions: brassicas, onions, cucumbers — called ‘plant doctor’ for helping sick plants
Avoid planting near: none in particular
Harvest flowers individually or cut whole stems when most blooms are open
USDA Hardiness Zone 4A has an average last spring frost around May 8 and first fall frost around Sep 25. 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.