Before planting it is a good idea to find your USDA Zone info to determine your garden 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 getting a good idea when to plant cleome is to look at the USDA zone info for Salem.

Planting Calendar for Cleome

Frost tolerance for cleome:	Not tolerant of frost.
When to plant:	After the last frost when the weather gets warmer.

You can not plant cleome until after all chance of frost has passed because they do not do well in cold weather.

The earliest that you can plant cleome in Salem 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. You can get started a few weeks earlier by starting your cleome indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on April 15 in Salem. You should expect an average low temperature of -5°F in the coldest months of winter.

Always keep in mind that USDA zone info for Salem is an average and the actual date of last frost is different every year. Half of the time in Salem there is a last frost after April 15 so make sure that you are prepared to cover your cleome in the event of a surprise late frost.

USDA Zone Info for Salem

Here is the info for USDA Zone 6b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-5°F
Highest Expected Low	0°F

This means that on a really cold year, the coldest it will get is -5°F. On most years you should be prepared to experience lows near 0°F.

Plants to Grow in Salem

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