One of the best tools that you have as gardeners to help us estimate your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

A way of figuring out when it's possible to plant shallots is to use the USDA zone info for Snohomish.

Planting Calendar for Shallots

Frost tolerance for shallots:	Tolerant of a very small amount of frost.
When to plant:	Up to 3 weeks before last frost.

Since shallots are barely cold tolerant you can plant them a bit earlier in the year than other frost tender plants.

The earliest that you can plant shallots in Snohomish is March. However, you really should wait until April if you don't want to take any chances.

The last month that you can plant shallots and expect a good harvest is probably August. You probably don't want to wait any later than that or else your shallots may not have a chance to really do well. You can get started a couple of weeks earlier by starting your shallots indoors.

Last Frost Date

On average the last frost is on March 15 in Snohomish. You should expect an average low temperature of 15°F in the coldest months of winter.

Since the USDA zone info for Snohomish is just an average the actual date of last frost changes from year to year. Half of the time in Snohomish you get a frost after March 15 so always be ready to protect your shallots in the event of one of those late frosts.

USDA Zone Info for Snohomish

Here is the info for USDA Zone 8b.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	15°F
Highest Expected Low	20°F

This means that on a really cold year, the coldest it will get is 15°F. On most years you should be prepared to experience lows near 20°F.

Plants to Grow in Snohomish

You may be interested in your other planting guides for Snohomish.