One of the best tools that you have as gardeners to help us determine your gardening schedule is the 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.

You will be able to estimate when it's possible to plant asparagus lettuce by referring to the USDA zone info for Ames.

Planting Calendar for Asparagus lettuce

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

You should not plant asparagus lettuce until after all chance of frost has passed because they are not cold tolerant.

The earliest that you can plant asparagus lettuce in Ames is April. However, you really should wait until May 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 August. If you wait any later than that and your asparagus lettuce may not have a chance to really do well. You can get started a couple of weeks earlier by starting your asparagus lettuce indoors.

Last Frost Date

On average all chance of frost has passed is on April 15 in Ames. It might get as low as -20°F during the coldest months of winter.

Remember that USDA zone info for Ames is just an average and the actual date of last frost will vary from year to year. Half of the time in Ames you get a frost after April 15 so make sure that you are ready to protect your asparagus lettuce in the event of one of those late frosts.

USDA Zone Info for Ames

Here is the info for USDA Zone 5a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-20°F
Highest Expected Low	-15°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 -15°F.

Plants to Grow in Ames

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