One of the best tools that you have as gardeners to help us determine your gardening schedule is the 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 best time to plant zucchini in Creve Coeur should be estimated by looking at the USDA zone info.

Planting Calendar for Zucchini

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

Since zucchini are not cold tolerant it's important to wait until after all chance of frost has passed before you can plant them.

The earliest that you can plant zucchini in Creve Coeur 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. If you wait any later than that and your zucchini may not have a chance to fully mature. If you are starting your zucchini indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

The average date of last frost is April 15 in Creve Coeur. In the coldest months of winter you can expect an average low temperature of -15°F.

It's important to remember that USDA zone info for Creve Coeur is an average and the actual date of last frost changes from year to year. Half of the time in Creve Coeur it frosts late in the year after April 15 so always be ready to protect your zucchini in the event of one of those late frosts.

USDA Zone Info for Creve Coeur

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 Creve Coeur

You may be interested in your other planting guides for Creve Coeur.