When can I plant Maltese Cross in Zone 1a

Before planting it is a good idea to find our USDA Zone info to estimate our garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for our area.

A common way of estimating when it's a good idea to plant maltese cross is to look at the USDA zone info for Zone 1a.


Planting Calendar for Maltese Cross

Frost tolerance for maltese cross: Tolerant of some frost.
When you should plant them: Up to 5 weeks before last frost.

Since maltese cross are moderately cold tolerant you can plant them just a bit earlier in the year than more sensitive plants.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant maltese cross
Possibly ok, but a risky time to plant maltese cross
Probably not a good time to plant maltese cross

The earliest that you can plant maltese cross in Zone 1a 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 maltese cross and expect a good harvest is probably July. Any later than that and your maltese cross may not have a chance to fully mature. You can get started a little bit earlier by starting your maltese cross indoors.

Last Frost Date

The average date of last frost is June 15 in Zone 1a. In the coldest months of winter we should expect an average low temperature of -60°F.

Always keep in mind that our actual date of last frost may not be accurate from year to year because it is based on the USDA zone info for Zone 1a and it is different every year. Since half of the time in Zone 1a we get surprised by a frost after June 15 be ready to cover your maltese cross if we have one of those late frosts.

USDA Zone Info for Zone 1a

Here is the info for USDA Zone 1a.

Average Date of Last Frost (spring)June 15
Average Date of First Frost (fall)July 15
Lowest Expected Low-60°F
Highest Expected Low-55°F

This means that on a really cold year, the coldest it will get is -60°F. On most years you should be prepared to experience lows near -55°F.

Plants to Grow in Zone 1a

You may be interested in our other planting guides for Zone 1a.