Before planting it is a good idea to find your USDA Zone info to determine 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.

You will be able to figure out when it's the best time to plant zucchini by reviewing the USDA zone info for Galesburg.

Planting Calendar for Zucchini

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

Since zucchini require warm weather it is important to wait until after the last frost when the weather gets warmer before you can plant them.

The earliest that you can plant zucchini in Galesburg 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 zucchini and expect a good harvest is probably August. You probably don't want to wait any later than that or else your zucchini may not have a chance to fully mature. Starting your zucchini indoors is a great way to get them started a few weeks earlier.

Last Frost Date

On average the last frost has passed is on April 15 in Galesburg. You should expect an average low temperature of -15°F in the coldest months of winter.

Since the USDA zone info for Galesburg is not always accurate the actual date of last frost can change quite a bit from year to year. Half of the time in Galesburg you get surprised by a frost after April 15 so be sure to be ready to cover your zucchini in the event of a late frost.

USDA Zone Info for Galesburg

Here is the info for USDA Zone 5b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-15°F
Highest Expected Low	-10°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 -10°F.

Plants to Grow in Galesburg

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