One of the best tools that you have as gardeners to help us determine your gardening schedule is the USDA zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

In Exeter you can figure out when it's possible to plant cleome by reviewing the USDA zone info.

Planting Calendar for Cleome

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

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

The earliest that you can plant cleome in Exeter is March. However, you really should wait until April if you don't want to take any chances.

The last month that you can plant cleome and expect a good harvest is probably September. If you wait any later than that and your cleome may not have a chance to grow to maturity. You can get started a little bit earlier by starting your cleome indoors.

Last Frost Date

The average date of last frost is February 15 in Exeter. It might get as low as 25°F during the coldest months of winter.

Remember that USDA zone info for Exeter is just an average and the actual date of last frost will vary from year to year. Half of the time in Exeter it frosts late in the year after February 15 so be sure to be ready to cover your cleome if you have one of those late frosts.

USDA Zone Info for Exeter

Here is the info for USDA Zone 9b.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	25°F
Highest Expected Low	30°F

This means that on a really cold year, the coldest it will get is 25°F. On most years you should be prepared to experience lows near 30°F.

Plants to Grow in Exeter

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