One of the first steps you take when you are making a decision about your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The best time to plant cleome in Lowell can be figured out by checking out the USDA zone info.

Planting Calendar for Cleome

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

Since cleome do not do well in cold weather you must wait until after all chance of frost has passed before you can plant them.

The earliest that you can plant cleome in Lowell 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 fully mature. Starting your cleome indoors is a great way to get them started a little bit earlier.

Last Frost Date

On average all chance of frost has passed is on April 15 in Lowell. It might get as low as -10°F during the coldest months of winter.

Since the USDA zone info for Lowell is not always accurate the actual date of last frost changes from year to year. Half of the time in Lowell there is a last frost after April 15 so just be sure to be ready to cover your cleome in the event of a surprise late frost.

USDA Zone Info for Lowell

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 Lowell

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