When can I plant Leeks in Zone 1b

Before planting it is a good idea to find our USDA Zone info to determine our garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for our area.

It's possible to determine when it's a good idea to plant leeks by looking at the USDA zone info for Zone 1b.


Planting Calendar for Leeks

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

Leeks do well in cold which means that you can plant them much earlier than plants that are more sensitive to the cold.

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

The earliest that you can plant leeks in Zone 1b 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 leeks and expect a good harvest is probably July. If you wait any later than that and your leeks may not have a chance to grow to maturity. You can get started a couple of weeks earlier by starting your leeks indoors.

Last Frost Date

In Zone 1b the average date of last frost happens on June 15. In the coldest months of winter we should expect an average low temperature of -55°F.

Remember that our actual date of last frost is an average because it is based on the USDA zone info for Zone 1b and it changes from year to year. Half of the time in Zone 1b there is a last frost after June 15 so make sure that you are ready to protect your leeks if we have one of those late frosts.

USDA Zone Info for Zone 1b

Here is the info for USDA Zone 1b.

Average Date of Last Frost (spring)June 15
Average Date of First Frost (fall)July 15
Lowest Expected Low-55°F
Highest Expected Low-50°F

This means that on a really cold year, the coldest it will get is -55°F. On most years you should be prepared to experience lows near -50°F.

Plants to Grow in Zone 1b

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