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

In Inverness you can estimate when it's possible to plant asparagus lettuce by using the USDA zone info.

Planting Calendar for Asparagus lettuce

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

Asparagus lettuce require warm weather which means that it is necessary to 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 Inverness 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 few weeks earlier by starting your asparagus lettuce indoors.

Last Frost Date

The average date of last frost is February 15 in Inverness. You can expect an average low temperature of 20°F in the coldest months of winter.

Since the USDA zone info for Inverness is just an average the actual date of last frost will vary from year to year. Half of the time in Inverness it frosts late in the year after February 15 so always be ready to cover your asparagus lettuce in the event of a late frost.

USDA Zone Info for Inverness

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 Inverness

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