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When to Plant Mammoth in Zone 3b

Family: Lamiaceae Herb

Planting Schedule

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

Get the exact Zone 3b timeline for your Mammoth. See localized frost dates, indoor sowing windows, and optimal companions below.

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Botanical illustration of Mammoth

Crop Dates : 3b

Growing note: This crop establishes over multiple seasons (~55 days / ~1 year to first harvest). Plant on the frost schedule; first harvest follows establishment, not a single frost-free season.
MilestoneDate
Start IndoorsApr 21st
Last FrostMay 19th
Transplant / Sow OutdoorsJul 7th
Harvest BeginsAug 31st
Harvest EndsSep 21st