One of the best tools that you have as gardeners to help us determine your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

In Fitchburg you can figure out when you can plant cleome by using the USDA zone info.

Planting Calendar for Cleome

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

You can not plant cleome until after the last frost has passed because they are not cold tolerant.

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

Last Frost Date

On average all chance of frost has passed is on April 15 in Fitchburg. You can expect an average low temperature of -15°F in the coldest months of winter.

Remember that USDA zone info for Fitchburg is an average and the actual date of last frost will vary from year to year. Since half of the time in Fitchburg it frosts late in the year after April 15 be ready to protect your cleome in the event of one of those late frosts.

USDA Zone Info for Fitchburg

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 Fitchburg

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