One of the first steps you take when you are determining your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The earliest that you can plant tomatos in Mukilteo should be figured out by using the USDA zone info.

Planting Calendar for Tomatos

Frost tolerance for tomatos:	Not tolerant of frost.
When to plant:	After the last frost.

Since tomatos are not cold tolerant you really should wait until after all chance of frost has passed before you can plant them.

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

The last month that you can plant tomatos and expect a good harvest is probably August. Any later than that and your tomatos may not have a chance to really do well. Starting your tomatos indoors is a great way to get them started a few weeks earlier.

Last Frost Date

The average date of last frost is March 15 in Mukilteo. You should expect an average low temperature of 15°F in the coldest months of winter.

Just be sure to remember that the actual date of last frost may not be accurate from year to year because it is based on the USDA zone info for Mukilteo and it will vary from year to year. Half of the time in Mukilteo it frosts late in the year after March 15 so make sure that you are ready to protect your tomatos in the event of a surprise late frost.

USDA Zone Info for Mukilteo

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 Mukilteo

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