One of the first steps you take when you are figuring out your gardening schedule is find your USDA Zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The best time to plant asparagus in Springfield can be determined by looking at the USDA zone info.

Planting Calendar for Asparagus

Frost tolerance for asparagus:	Very tolerant of frost.
When to plant:	Up to 7 weeks before last frost.

Since asparagus are very cold tolerant you can plant them quite a bit earlier in the year than plants that are more sensitive to the cold.

The earliest that you can plant asparagus in Springfield 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 and expect a good harvest is probably October. Any later than that and your asparagus may not have a chance to really do well. You can get started a little bit earlier by starting your asparagus indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on February 15 in Springfield. In the coldest months of winter you can expect an average low temperature of 20°F.

Since the USDA zone info for Springfield is not always accurate the actual date of last frost can change quite a bit from year to year. Half of the time in Springfield there is a last frost after February 15 so always be ready to protect your asparagus in the event of a surprise late frost.

USDA Zone Info for Springfield

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 Springfield

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