One of the best tools that you have as gardeners to help us estimate 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.

You can figure out when it's a good idea to plant asparagus peas in Phoenix by checking out the USDA zone info.

Planting Calendar for Asparagus peas

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

Since asparagus peas are moderately cold tolerant you can plant them a little bit earlier in the year than other frost tender plants.

The earliest that you can plant asparagus peas in Phoenix 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. Any later than that and your asparagus peas may not have a chance to fully mature. If you are starting your asparagus peas indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

On average the last frost is on March 15 in Phoenix. You can expect an average low temperature of 10°F in the coldest months of winter.

Always keep in mind that USDA zone info for Phoenix is not always accurate and the actual date of last frost will vary from year to year. Since half of the time in Phoenix there is a last frost after March 15 be ready to protect your asparagus peas in the event of a surprise late frost.

USDA Zone Info for Phoenix

Here is the info for USDA Zone 8a.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	10°F
Highest Expected Low	15°F

This means that on a really cold year, the coldest it will get is 10°F. On most years you should be prepared to experience lows near 15°F.

Plants to Grow in Phoenix

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