Before planting it is a good idea to find your USDA Zone info to figure out your garden schedule. 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 coleus in Prosser should be determined by checking out the USDA zone info.

Planting Calendar for Coleus

Frost tolerance for coleus:	Not tolerant of frost.
When to plant:	After the last frost when the weather gets warmer.

You can not plant coleus until after the last frost has passed because they are not cold tolerant.

The earliest that you can plant coleus in Prosser 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 coleus and expect a good harvest is probably August. You probably don't want to wait any later than that or else your coleus may not have a chance to really do well. You can get started a little bit earlier by starting your coleus indoors.

Last Frost Date

The average date of last frost is April 15 in Prosser. You should expect an average low temperature of 0°F in the coldest months of winter.

Just be sure to remember that USDA zone info for Prosser is not always accurate and the actual date of last frost changes from year to year. Since half of the time in Prosser you get surprised by a frost after April 15 be ready to cover your coleus if you have one of those late frosts.

USDA Zone Info for Prosser

Here is the info for USDA Zone 7a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	0°F
Highest Expected Low	5°F

This means that on a really cold year, the coldest it will get is 0°F. On most years you should be prepared to experience lows near 5°F.

Plants to Grow in Prosser

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