SproutSmart
SproutSmart™ Intelligent Garden Sowing

When to Plant Irene in Zone 4b

Family: Lamiaceae Herb

Planting Schedule

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

Get the exact Zone 4b timeline for your Irene. See localized frost dates, indoor sowing windows, and optimal companions below.

Need deeper agronomic data, pest profiles, and optimal flavor pairings?

Explore Irene Data
Botanical illustration of Irene

Crop Dates : 4b

MilestoneDate
Start IndoorsMar 18th
Last FrostMay 13th
Transplant / Sow OutdoorsJun 24th
Harvest BeginsSep 22nd
Harvest EndsSep 27th