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

In Waupun you can figure out when it's the best time to plant flax by reviewing the USDA zone info.

Planting Calendar for Flax

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

Flax can survive in some cold which means that you can plant them a little earlier in the year than more sensitive plants.

The earliest that you can plant flax in Waupun 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 grow to maturity. Starting your flax indoors is a great way to get them started a few weeks earlier.

Last Frost Date

The average date of last frost is April 15 in Waupun. In the coldest months of winter you should expect an average low temperature of -20°F.

Remember that USDA zone info for Waupun is just an average and the actual date of last frost changes from year to year. Since half of the time in Waupun it frosts late in the year after April 15 be ready to protect your flax in the event of one of those late frosts.

USDA Zone Info for Waupun

Here is the info for USDA Zone 5a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-20°F
Highest Expected Low	-15°F

This means that on a really cold year, the coldest it will get is -20°F. On most years you should be prepared to experience lows near -15°F.

Plants to Grow in Waupun

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