SproutSmart
SproutSmart™ Intelligent Garden Sowing

When to Plant Petunia in Zone 4b

Family: Solanaceae Garden Petunia

Planting Schedule

Add Petunia to your garden to build a schedule and get reminders.

Your Zone 4b Petunia cheat sheet. All the dates and companions you need to get seeds in the ground successfully

Want the complete botanical breakdown and expert growing tips?

View Petunia Guide
Botanical illustration of Petunia

Crop Dates : 4b

MilestoneDate
Start IndoorsMar 4th
Last FrostMay 13th
Transplant / Sow OutdoorsApr 29th
Harvest BeginsJul 8th
Harvest EndsSep 27th