Before planting it is a good idea to find your USDA Zone info to determine your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

By referring to the USDA zone info for Kennewick you should be able to estimate when it's possible to plant asparagus peas.

Planting Calendar for Asparagus peas

Frost tolerance for asparagus peas:	Tolerant of some frost.
When to plant:	Up to 5 weeks before last frost.

Asparagus peas are moderately cold tolerant which means that you can start planting them earlier than other frost tender plants.

The earliest that you can plant asparagus peas in Kennewick is February. However, you really should wait until March if you don't want to take any chances.

The last month that you can plant asparagus peas and expect a good harvest is probably September. You probably don't want to wait any later than that or else your asparagus peas may not have a chance to really do well. You can get started a couple of weeks earlier by starting your asparagus peas indoors.

Last Frost Date

The average date of last frost is April 15 in Kennewick. In the coldest months of winter you can expect an average low temperature of 0°F.

Just be sure to remember that USDA zone info for Kennewick is just an average and the actual date of last frost can change quite a bit from year to year. Half of the time in Kennewick it frosts late in the year after April 15 so make sure that you are ready to cover your asparagus peas if you have a surprise late frost.

USDA Zone Info for Kennewick

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 Kennewick

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