When to Plant Squash in Federal Way, WA

One of the first steps you take when you are determining your gardening schedule is find your USDA Zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The first opportunity to plant squash in Federal Way should be determined by checking out the USDA zone info.


Planting Calendar for Squash

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

Since squash do not do well in cold weather you have to wait until after the last frost before you can plant them.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant squash
Possibly ok, but a risky time to plant squash
Probably not a good time to plant squash

The earliest that you can plant squash in Federal Way 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 squash and expect a good harvest is probably August. You probably don't want to wait any later than that or else your squash may not have a chance to grow to maturity. If you are starting your squash indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

In Federal Way the average date of last frost happens on March 15. In the coldest months of winter you should expect an average low temperature of 15°F.

Since the USDA zone info for Federal Way is just an average the actual date of last frost changes from year to year. Half of the time in Federal Way last frost occurs after March 15 so make sure that you are prepared to cover your squash if you have a surprise late frost.

USDA Zone Info for Federal Way

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 Low15°F
Highest Expected Low20°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 Federal Way

You may be interested in your other planting guides for Federal Way.