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.

It's possible to estimate when it's the best time to plant cleome by looking at the USDA zone info for Oberlin.

Planting Calendar for Cleome

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

It's not a good idea to plant cleome until after all chance of frost has passed because they are not cold tolerant.

The earliest that you can plant cleome in Oberlin 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. If you wait any later than that and your cleome may not have a chance to grow to maturity. If you are starting your cleome indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

On average the last frost is on April 15 in Oberlin. In the coldest months of winter you should expect an average low temperature of -10°F.

Just be sure to remember that USDA zone info for Oberlin may not be accurate from year to year and the actual date of last frost will vary from year to year. Half of the time in Oberlin last frost occurs after April 15 so make sure that you are prepared to protect your cleome if you have a late frost.

USDA Zone Info for Oberlin

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 Oberlin

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