When to Plant Squash in Bonney Lake, WA

Before planting it is a good idea to find your USDA Zone info to figure out your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

In Bonney Lake you can estimate when it's possible to plant squash by looking at the USDA zone info.


Planting Calendar for Squash

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

You really shouldn't plant squash until after the last frost because they are not cold tolerant.

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 Bonney Lake 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 really do well. Starting your squash indoors is a great way to get them started a few weeks earlier.

Last Frost Date

On average the last frost is on March 15 in Bonney Lake. In the coldest months of winter you should expect an average low temperature of 15°F.

Since the USDA zone info for Bonney Lake is just an average the actual date of last frost is different every year. Half of the time in Bonney Lake it frosts late in the year after March 15 so be sure to be ready to cover your squash in the event of one of those late frosts.

USDA Zone Info for Bonney Lake

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 Bonney Lake

You may be interested in your other planting guides for Bonney Lake.