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 Prosser you can determine when you can plant cantaloupes by using the USDA zone info.

Planting Calendar for Cantaloupes

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

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

The earliest that you can plant cantaloupes 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 cantaloupes and expect a good harvest is probably August. Any later than that and your cantaloupes may not have a chance to fully mature. If you are starting your cantaloupes indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

In Prosser the average date of last frost happens on April 15. In the coldest months of winter you can expect an average low temperature of 0°F.

Since the USDA zone info for Prosser is not always accurate the actual date of last frost is different every year. Since half of the time in Prosser you get surprised by a frost after April 15 be ready to protect your cantaloupes if you have a surprise late frost.

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.