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

The USDA zone info for American Fork can be reviewed to determine when it's the best time to plant liatris.

Planting Calendar for Liatris

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

Liatris tend to make it in cold weather which tells us that you can plant them earlier in the year than other frost tender plants.

The earliest that you can plant liatris in American Fork is February. However, you really should wait until March if you don't want to take any chances.

The last month that you can plant liatris and expect a good harvest is probably September. You probably don't want to wait any later than that or else your liatris may not have a chance to fully mature. If you are starting your liatris indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

On average the last frost is on April 15 in American Fork. You can expect an average low temperature of -5°F in the coldest months of winter.

It's important to remember that USDA zone info for American Fork is not always accurate and the actual date of last frost can change quite a bit from year to year. Since half of the time in American Fork you get surprised by a frost after April 15 be ready to cover your liatris in the event of one of those late frosts.

USDA Zone Info for American Fork

Here is the info for USDA Zone 6b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-5°F
Highest Expected Low	0°F

This means that on a really cold year, the coldest it will get is -5°F. On most years you should be prepared to experience lows near 0°F.

Plants to Grow in American Fork

You may be interested in your other planting guides for American Fork.