When to Plant Calla Lily in Monroeville, PA

One of the best tools that you have as gardeners to help us estimate your gardening schedule is the USDA zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The USDA zone info for Monroeville can be used 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.

Calla Lily do not do well in cold weather which tells us that you must wait until it warms up after all chance of 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 Monroeville 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 fully mature. You can get started a few weeks earlier by starting your calla lily indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on April 15 in Monroeville. In the coldest months of winter you can expect an average low temperature of -10°F.

Since the USDA zone info for Monroeville is just an average the actual date of last frost changes from year to year. Since half of the time in Monroeville last frost occurs after April 15 be ready to protect your calla lily if you have a late frost.

USDA Zone Info for Monroeville

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 Monroeville

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