Growing Snapdragons in Zone 3B

Snapdragons are cool-season workhorses that bloom prolifically in spring and fall.

Zone 3B has a short growing season — start seeds indoors when possible and use season-extending techniques like cold frames and row covers.

Top Growing Tips

• Start indoors 8-10 weeks before last frost for earliest blooms
• Pinch growing tips when 3-4 inches tall to encourage branching
• Come in every color except blue — great for cutting gardens
• Often survive mild winters and return as short-lived perennials in zones 7+
• Deadhead regularly for continuous blooming

Companion Planting

Good companions: other cool-season flowers and vegetables

Avoid planting near: none in particular

Harvest Timeline

Flowering in 70-80 days from seed; excellent cut flowers

About Zone 3B

USDA Hardiness Zone 3B has an average last spring frost around May 15 and first fall frost around Sep 15. 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.