Before planting it is a good idea to find your USDA Zone info to determine 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.

You will be able to figure out when to plant flax by reviewing the USDA zone info for Milwaukee.

Planting Calendar for Flax

Frost tolerance for flax:	Tolerant of some frost.
When to plant:	Up to 5 weeks before last frost.

You can plant flax just a bit earlier in the year because they do well in moderate cold.

The earliest that you can plant flax in Milwaukee 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 flax and expect a good harvest is probably September. Any later than that and your flax may not have a chance to really do well. You can get started a little bit earlier by starting your flax indoors.

Last Frost Date

On average the last frost has passed is on April 15 in Milwaukee. In the coldest months of winter you should expect an average low temperature of -15°F.

It's important to remember that USDA zone info for Milwaukee is just an average and the actual date of last frost will vary from year to year. Half of the time in Milwaukee there is a last frost after April 15 so make sure that you are prepared to protect your flax if you have a late frost.

USDA Zone Info for Milwaukee

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 Milwaukee

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