Chives are one of the easiest and most useful perennial herbs, with mild onion flavor and pretty purple flowers.
Zone 5B has a moderate growing season. Most crops do well here with proper timing around frost dates.
Good companions: carrots, tomatoes, roses, grapes
Avoid planting near: beans, peas
Snip leaves to 2 inches above soil; regrows quickly
USDA Hardiness Zone 5B has an average last spring frost around Apr 18 and first fall frost around Oct 13. 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.