Growing Oregano in Zone 4B

Oregano is a staple Mediterranean herb that’s perennial, drought-tolerant, and easy to grow.

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

• Perennial in zones 5-10 — very hardy once established
• Greek oregano has the best culinary flavor
• Cut plants back by 2/3 mid-summer for a fresh flush of growth
• Flowers attract pollinators — let some bloom
• Flavor is most intense just before flowering

Companion Planting

Good companions: peppers, tomatoes, basil

Avoid planting near: none in particular

Harvest Timeline

Begin harvesting when plants are 4-5 inches tall

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.