When can I plant Garlic 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 figuring out when it's a good idea to plant garlic is to examine the USDA zone info for Zone 1a.


Planting Calendar for Garlic

Frost tolerance for garlic: Very tolerant of frost.
When you should plant them: Up to 7 weeks before last frost.

Since garlic are very cold tolerant you can plant them much earlier in the year than more sensitive plants.

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

The earliest that you can plant garlic 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 garlic and expect a good harvest is probably July. You probably don't want to wait any later than that or else your garlic may not have a chance to grow to maturity. If you are starting your garlic indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

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

Since the USDA zone info for Zone 1a is just an average our actual date of last frost changes from year to year. Half of the time in Zone 1a there is a last frost after June 15 so just be sure to be ready to protect your garlic in the event of 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.