When to Plant Calla Lily in Milton, PA

The USDA Zone info is a great tool for gardeners to help us determine your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

One way of making a decision about when it's the best time to plant calla lily is to examine the USDA zone info for Milton.


Planting Calendar for Calla Lily

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

Since calla lily do not do well in cold weather it is important to wait until after the last frost 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 Milton 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 really do well. Starting your calla lily indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

The average date of last frost is April 15 in Milton. It might get as low as -5°F during the coldest months of winter.

Since the USDA zone info for Milton may not be accurate from year to year the actual date of last frost can change quite a bit from year to year. Half of the time in Milton you get a frost after April 15 so just be sure to be ready to cover your calla lily if you have a surprise late frost.

USDA Zone Info for Milton

Here is the info for USDA Zone 6b.

Average Date of Last Frost (spring)April 15
Average Date of First Frost (fall)October 15
Lowest Expected Low-5°F
Highest Expected Low0°F

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

Plants to Grow in Milton

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