The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

A common way of determining when it's the best time to plant asparagus lettuce is to refer to the USDA zone info for Atwater.

Planting Calendar for Asparagus lettuce

Frost tolerance for asparagus lettuce:	Not tolerant of frost.
When to plant:	After the last frost.

Asparagus lettuce are not cold tolerant which means that you must wait until it warms up after the last frost when the weather gets warmer before you can plant them.

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

The last month that you can plant asparagus lettuce and expect a good harvest is probably September. Any later than that and your asparagus lettuce may not have a chance to fully mature. You can get started a little bit earlier by starting your asparagus lettuce indoors.

Last Frost Date

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

Since the USDA zone info for Atwater is not always accurate the actual date of last frost can change quite a bit from year to year. Since half of the time in Atwater last frost occurs after February 15 be ready to cover your asparagus lettuce in the event of a late frost.

USDA Zone Info for Atwater

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 Atwater

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