The USDA Zone info is a great tool for gardeners to help us determine 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.

By referring to the USDA zone info for Boone you should be able to determine when it's a good idea to plant asparagus fern.

Planting Calendar for Asparagus Fern

Frost tolerance for asparagus fern:	Not tolerant of frost.
When to plant:	After all chance of frost has passed.

You really shouldn't plant asparagus fern until after the last frost when the weather gets warmer because they are not cold tolerant.

The earliest that you can plant asparagus fern in Boone 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 fern and expect a good harvest is probably August. Any later than that and your asparagus fern may not have a chance to fully mature. Starting your asparagus fern indoors is a great way to get them started a few weeks earlier.

Last Frost Date

In Boone the average date of last frost happens on April 15. You should expect an average low temperature of -20°F in the coldest months of winter.

Since the USDA zone info for Boone 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 Boone you get a frost after April 15 be ready to cover your asparagus fern in the event of one of those late frosts.

USDA Zone Info for Boone

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 Boone

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