One of the first steps you take when you are estimating 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.

The USDA zone info for Irvington can be reffered to in order to determine when it's possible 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 not a good idea to plant calla lily until after the last frost has passed because they require warm weather.

The earliest that you can plant calla lily in Irvington 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. 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. You can get started a few weeks earlier by starting your calla lily indoors.

Last Frost Date

The average date of last frost is April 15 in Irvington. It might get as low as 0°F during the coldest months of winter.

Remember that USDA zone info for Irvington is an average and the actual date of last frost changes from year to year. Half of the time in Irvington last frost occurs after April 15 so always be ready to protect your calla lily if you have one of those late frosts.

USDA Zone Info for Irvington

Here is the info for USDA Zone 7a.

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

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

Plants to Grow in Irvington

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