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

A common way of figuring out when it's a good idea to plant maltese cross is to consult the USDA zone info for River Grove.

Planting Calendar for Maltese Cross

Frost tolerance for maltese cross:	Tolerant of some frost.
When to plant:	Up to 5 weeks before last frost.

You can plant maltese cross just a bit earlier in the year because they do well in moderate cold.

The earliest that you can plant maltese cross in River Grove is February. However, you really should wait until March if you don't want to take any chances.

The last month that you can plant maltese cross and expect a good harvest is probably September. You probably don't want to wait any later than that or else your maltese cross may not have a chance to really do well. Starting your maltese cross indoors is a great way to get them started a few weeks earlier.

Last Frost Date

On average the last frost when the weather gets warmer is on April 15 in River Grove. In the coldest months of winter you should expect an average low temperature of -15°F.

Always keep in mind that USDA zone info for River Grove is an average and the actual date of last frost is different every year. Half of the time in River Grove last frost occurs after April 15 so just be sure to be ready to protect your maltese cross if you have a surprise late frost.

USDA Zone Info for River Grove

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 River Grove

You may be interested in your other planting guides for River Grove.