Growing Scallions in Zone 4B

Scallions (green onions) are one of the most versatile kitchen garden staples — quick, productive, and harvestable at any size.

Zone 4B has a short growing season — start seeds indoors when possible and use season-extending techniques like cold frames and row covers.

Top Growing Tips

• Succession-sow every 2-3 weeks for continuous supply
• Harvest when tops are 6-8 inches tall and bulb is pencil-thick
• Cut above the soil line to regrow multiple harvests
• Grow in containers on a porch or windowsill for year-round supply
• Interplant with carrots — scallions repel carrot fly

Companion Planting

Good companions: carrots, tomatoes, peppers

Avoid planting near: beans, peas (onions inhibit legume nitrogen fixation)

Harvest Timeline

50-70 days from seed; harvest anytime after tops reach 6 inches

About Zone 4B

USDA Hardiness Zone 4B has an average last spring frost around May 1 and first fall frost around Oct 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.