When to Plant Leeks in Quincy, IL

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

The earliest that you can plant leeks in Quincy can be estimated by referring to the USDA zone info.


Planting Calendar for Leeks

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

Leeks tend to make it in quite a bit of cold which tells us that you can plant them quite a bit earlier in the year than other plants that might not handle 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 Quincy is February. However, you really should wait until March if you don't want to take any chances.

The last month that you can plant leeks and expect a good harvest is probably September. Any later than that and your leeks may not have a chance to really do well. You can get started a couple of weeks earlier by starting your leeks indoors.

Last Frost Date

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

Just be sure to remember that USDA zone info for Quincy is just an average and the actual date of last frost changes from year to year. Since half of the time in Quincy last frost occurs after April 15 be ready to protect your leeks if you have one of those late frosts.

USDA Zone Info for Quincy

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 Quincy

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