One of the first steps you take when you are determining your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

In Auburn you can figure out when you can plant calla lily by reviewing the USDA zone info.

Planting Calendar for Calla Lily

Frost tolerance for calla lily:	Not tolerant of frost.
When to plant:	After the last frost.

You should not plant calla lily until after the last frost has passed because they are not cold tolerant.

The earliest that you can plant calla lily in Auburn 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 calla lily and expect a good harvest is probably August. If you wait any later than that and your calla lily may not have a chance to grow to maturity. Starting your calla lily indoors is a great way to get them started a little bit earlier.

Last Frost Date

On average the last frost has passed is on April 15 in Auburn. In the coldest months of winter you should expect an average low temperature of -10°F.

Always keep in mind that USDA zone info for Auburn is not always accurate and the actual date of last frost is different every year. Half of the time in Auburn you get surprised by a frost after April 15 so make sure that you are ready to protect your calla lily 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.