The USDA Zone info is a great tool for gardeners to help us estimate 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 looking at the USDA zone info for Winter Haven it's possible to figure out when to plant calla lily.

Planting Calendar for Calla Lily

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

It's a bad idea to plant calla lily until after the last frost when the weather gets warmer because they do not do well in cold weather.

The earliest that you can plant calla lily in Winter Haven is March. However, you really should wait until April 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 September. You probably don't want to wait any later than that or else 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 few weeks earlier.

Last Frost Date

The average date of last frost is February 15 in Winter Haven. In the coldest months of winter you should expect an average low temperature of 25°F.

Since the USDA zone info for Winter Haven is not always accurate the actual date of last frost changes from year to year. Since half of the time in Winter Haven it frosts late in the year after February 15 be ready to protect your calla lily in the event of a late frost.

USDA Zone Info for Winter Haven

Here is the info for USDA Zone 9b.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	25°F
Highest Expected Low	30°F

This means that on a really cold year, the coldest it will get is 25°F. On most years you should be prepared to experience lows near 30°F.

Plants to Grow in Winter Haven

You may be interested in your other planting guides for Winter Haven.