The USDA Zone info is a great tool for gardeners to help us estimate your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

In Kirkland 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 all chance of frost has passed.

Squash are not cold tolerant which means that you really should wait until it warms up after the last frost before you can plant them.

The earliest that you can plant squash in Kirkland 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. If you wait any later than that and your squash may not have a chance to fully mature. Starting your squash 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 Kirkland. You should expect an average low temperature of 15°F in the coldest months of winter.

Since the USDA zone info for Kirkland is not always accurate the actual date of last frost can change quite a bit from year to year. Since half of the time in Kirkland last frost occurs after March 15 be ready to protect your squash if you have a late frost.

USDA Zone Info for Kirkland

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 Kirkland

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