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.

It's possible to estimate when it's a good idea to plant calla lily by checking out the USDA zone info for Brookfield.

Planting Calendar for Calla Lily

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

It's not a good idea to plant calla lily until after the last frost because they are not cold tolerant.

The earliest that you can plant calla lily in Brookfield 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. You can get started a little bit earlier by starting your calla lily indoors.

Last Frost Date

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

Since the USDA zone info for Brookfield may not be accurate from year to year the actual date of last frost will vary from year to year. Since half of the time in Brookfield it frosts late in the year after April 15 be ready to cover your calla lily if you have one of those late frosts.

USDA Zone Info for Brookfield

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 Brookfield

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