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

One way of estimating when it's the best time to plant cleome is to examine the USDA zone info for Newton.

Planting Calendar for Cleome

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

It's probably not a good idea to plant cleome until after the last frost because they require warm weather.

The earliest that you can plant cleome in Newton 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 grow to maturity. Starting your cleome indoors is a great way to get them started a little bit earlier.

Last Frost Date

The average date of last frost is April 15 in Newton. In the coldest months of winter you can expect an average low temperature of -10°F.

Just be sure to remember that the actual date of last frost may not be accurate from year to year because it is based on the USDA zone info for Newton and it will vary from year to year. Since half of the time in Newton you get a frost after April 15 be ready to protect your cleome in the event of a surprise late frost.

USDA Zone Info for Newton

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 Newton

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