The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

You can estimate when it's a good idea to plant asparagus peas in Sulphur by reviewing 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.

Asparagus peas do well in moderate cold which means that you can start planting them earlier than other plants that might not handle the cold.

The earliest that you can plant asparagus peas in Sulphur is January. However, you really should wait until February 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 October. Any later than that and your asparagus peas may not have a chance to fully mature. Starting your asparagus peas indoors is a great way to get them started a few weeks earlier.

Last Frost Date

On average the last frost is on February 15 in Sulphur. You should expect an average low temperature of 20°F in the coldest months of winter.

Since the USDA zone info for Sulphur is not always accurate the actual date of last frost can change quite a bit from year to year. Half of the time in Sulphur there is a last frost after February 15 so make sure that you are prepared to protect your asparagus peas if you have a late frost.

USDA Zone Info for Sulphur

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 Sulphur

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