Growing Snapdragons in Zone 4B

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

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

• 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 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.