When to Plant Shallots

Shallots are a hardy cool-season vegetable. They can take a hard frost.

Plant them out 1 to 4 weeks before the last spring frost. The first harvest comes about 90 to 120 days after planting.

Example dates

The same rules in dates for three climates, using typical frost dates. Enter your ZIP code above for the dates where you live.

Shallots: dates by last spring and first fall frost
TaskLast frost Mar 15first Nov 15Last frost Apr 15first Oct 25Last frost May 15first Sep 30
PlantFeb 15 – Mar 8Mar 18 – Apr 8Apr 17 – May 8
HarvestMay 16 – 30Jun 16 – 30Jul 16 – 30

Growing shallots

Each set multiplies into a cluster of bulbs; in mild-winter areas sets can also go in during autumn.

Plan your beds with these dates

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Questions

Can shallots go in before the last frost?

Yes. Shallots are hardy: plant them out 1 to 4 weeks before the last spring frost.

How long do shallots take to grow?

About 90 to 120 days from planting to the first harvest, which then lasts about 2 weeks. Varieties differ: check the seed packet.

More planting dates

Sources

  1. NOAA National Centers for Environmental Information, U.S. Climate Normals 1991–2020 (annual/seasonal, by station: freeze dates at 32 °F)
  2. University of Maryland Extension: Vegetable Planting Calendar for central Maryland
  3. WSU Extension: Pacific Northwest Gardener's Handbook, Chapter 7: Vegetable Gardening
  4. Iowa State University Extension and Outreach: Vegetable Planting and Harvesting Times (chart, central Iowa)
  5. Iowa State: The Other Onions
  6. Cornell Cooperative Extension, Rockland County: Vegetable Planting Guide (Hort 52)
  7. UC Master Gardener Program, UC ANR: Companion Planting Chart: Companion Planting for Edible Crops
  8. University of Wisconsin–Madison Extension, Kenosha County: Companion Plants for the Vegetable Garden (column, 2012)
  9. SDSU Extension: Square-Foot Garden Sample Planting Layout (P-00379, 2026)
  10. University of Arizona Cooperative Extension, Yavapai County: The Art of Companion Planting (Master Gardener presentation, 2023)