One of the first steps you take when you are getting a good idea your gardening schedule is find your USDA Zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

You will be able to estimate when it's a good idea to plant leeks by referring to the USDA zone info for Bloomingdale.

Planting Calendar for Leeks

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

You can plant leeks earlier in the year because they are one of those plants that can tolerate quite a bit of cold weather.

The earliest that you can plant leeks in Bloomingdale 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. You probably don't want to wait any later than that or else your leeks may not have a chance to really do well. Starting your leeks indoors is a great way to get them started a few weeks earlier.

Last Frost Date

On average the last frost has passed is on April 15 in Bloomingdale. It might get as low as -15°F during the coldest months of winter.

Since the USDA zone info for Bloomingdale is not always accurate the actual date of last frost is different every year. Half of the time in Bloomingdale you get a frost after April 15 so always be ready to protect your leeks if you have one of those late frosts.

USDA Zone Info for Bloomingdale

Here is the info for USDA Zone 5b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-15°F
Highest Expected Low	-10°F

This means that on a really cold year, the coldest it will get is -15°F. On most years you should be prepared to experience lows near -10°F.

Plants to Grow in Bloomingdale

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