When can I plant Calla Lily in Zone 3b

The USDA Zone info is a great tool for gardeners to help us estimate our gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for our area.

The USDA zone info for Zone 3b can be looked at to estimate when it's possible to plant calla lily.


Planting Calendar for Calla Lily

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

Since calla lily do not do well in cold weather you really should wait until after the last frost has passed before you can plant them.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant calla lily
Possibly ok, but a risky time to plant calla lily
Probably not a good time to plant calla lily

The earliest that you can plant calla lily in Zone 3b is May. However, you really should wait until June 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 little bit earlier by starting your calla lily indoors.

Last Frost Date

On average all chance of frost has passed is on May 15 in Zone 3b. It might get as low as -35°F during the coldest months of winter.

Always keep in mind that our actual date of last frost is not always accurate because it is based on the USDA zone info for Zone 3b and it will vary from year to year. Since half of the time in Zone 3b there is a last frost after May 15 be ready to protect your calla lily if we have a late frost.

USDA Zone Info for Zone 3b

Here is the info for USDA Zone 3b.

Average Date of Last Frost (spring)May 15
Average Date of First Frost (fall)September 15
Lowest Expected Low-35°F
Highest Expected Low-30°F

This means that on a really cold year, the coldest it will get is -35°F. On most years you should be prepared to experience lows near -30°F.

Plants to Grow in Zone 3b

You may be interested in our other planting guides for Zone 3b.