Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

In Auburn you can figure out when it's possible to plant coral bells by reviewing the USDA zone info.

Planting Calendar for Coral Bells

Frost tolerance for coral bells:	Tolerant of some frost.
When to plant:	Up to 5 weeks before last frost.

Since coral bells do well in moderate cold you can plant them a bit earlier in the year than other frost tender plants.

The earliest that you can plant coral bells in Auburn 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 coral bells and expect a good harvest is probably September. You probably don't want to wait any later than that or else your coral bells may not have a chance to fully mature. Starting your coral bells indoors is a great way to get them started a little bit earlier.

Last Frost Date

The average date of last frost is April 15 in Auburn. You should expect an average low temperature of -10°F in the coldest months of winter.

It's important to remember that USDA zone info for Auburn is an average and the actual date of last frost changes from year to year. Since half of the time in Auburn last frost occurs after April 15 be ready to protect your coral bells in the event of one of those late frosts.

USDA Zone Info for Auburn

Here is the info for USDA Zone 6a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-10°F
Highest Expected Low	-5°F

This means that on a really cold year, the coldest it will get is -10°F. On most years you should be prepared to experience lows near -5°F.

Plants to Grow in Auburn

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