Growing Verbena in Zone 4A

Verbena is a heat-loving, butterfly-magnet annual that covers itself with clusters of tiny flowers all season long — ideal for hot spots and containers.

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

Top Growing Tips

• Needs excellent drainage — root rot is common in wet soils
• Trailing varieties are spectacular in hanging baskets
• Deadhead or shear back by one-third mid-season to refresh
• Butterfly magnet — especially swallowtails and monarchs
• Extremely heat and drought tolerant once established

Companion Planting

Good companions: lantana, marigolds, petunias

Avoid planting near: Shade and wet conditions

Harvest Timeline

Ornamental; deadhead regularly to maintain bloom production

About Zone 4A

USDA Hardiness Zone 4A has an average last spring frost around May 8 and first fall frost around Sep 25. 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.