The USDA Zone info is a great tool for gardeners to help us estimate your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

A common way of determining when you can plant leeks is to use the USDA zone info for Jessup.

Planting Calendar for Leeks

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

Leeks do ok in a bit of cold which tells us that you can plant them earlier in the year than more sensitive plants.

The earliest that you can plant leeks in Jessup 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 little bit earlier by starting your leeks indoors.

Last Frost Date

In Jessup the average date of last frost happens on April 15. It might get as low as -10°F during the coldest months of winter.

Just be sure to remember that the actual date of last frost is an average because it is based on the USDA zone info for Jessup and it will vary from year to year. Since half of the time in Jessup you get a frost after April 15 be ready to protect your leeks if you have a surprise late frost.

USDA Zone Info for Jessup

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 Jessup

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