One of the best tools that you have as gardeners to help us figure out your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

In Roseburg you can determine when to plant cleome by referring to 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.

You really shouldn't plant cleome until after the last frost has passed because they do not do well in cold weather.

The earliest that you can plant cleome in Roseburg 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. Any later than that and your cleome may not have a chance to really do well. You can get started a couple of weeks earlier by starting your cleome indoors.

Last Frost Date

The average date of last frost is February 15 in Roseburg. In the coldest months of winter you should expect an average low temperature of 20°F.

Keep in mind that USDA zone info for Roseburg is just an average and the actual date of last frost is different every year. Half of the time in Roseburg you get surprised by a frost after February 15 so just be sure to be ready to cover your cleome in the event of a late frost.

USDA Zone Info for Roseburg

Here is the info for USDA Zone 9a.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	20°F
Highest Expected Low	25°F

This means that on a really cold year, the coldest it will get is 20°F. On most years you should be prepared to experience lows near 25°F.

Plants to Grow in Roseburg

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