Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

By using the USDA zone info for Berwyn it's possible to figure out when it's possible to plant zucchini.

Planting Calendar for Zucchini

Frost tolerance for zucchini:	Not tolerant of frost.
When to plant:	After all chance of frost has passed.

Since zucchini do not do well in cold weather you really should wait until after the last frost before you can plant them.

The earliest that you can plant zucchini in Berwyn 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. Any later than that and your zucchini may not have a chance to really do well. Starting your zucchini indoors is a great way to get them started a few weeks earlier.

Last Frost Date

The average date of last frost is April 15 in Berwyn. You should expect an average low temperature of -10°F in the coldest months of winter.

Just be sure to remember that USDA zone info for Berwyn is an average and the actual date of last frost will vary from year to year. Since half of the time in Berwyn you get surprised by a frost after April 15 be ready to cover your zucchini in the event of a surprise late frost.

USDA Zone Info for Berwyn

Here is the info for USDA Zone 6a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-10°F
Highest Expected Low	-5°F

This means that on a really cold year, the coldest it will get is -10°F. On most years you should be prepared to experience lows near -5°F.

Plants to Grow in Berwyn

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