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.

In Onalaska you can estimate when it's possible to plant endive by reviewing the USDA zone info.

Planting Calendar for Endive

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

Since endive do well in moderate cold you can plant them a little earlier in the year than plants that are more sensitive to the cold.

The earliest that you can plant endive in Onalaska is March. However, you really should wait until April if you don't want to take any chances.

The last month that you can plant endive and expect a good harvest is probably August. You probably don't want to wait any later than that or else your endive may not have a chance to really do well. Starting your endive indoors is a great way to get them started a few weeks earlier.

Last Frost Date

In Onalaska the average date of last frost happens on May 15. In the coldest months of winter you should expect an average low temperature of -25°F.

Always keep in mind that USDA zone info for Onalaska may not be accurate from year to year and the actual date of last frost is different every year. Half of the time in Onalaska you get surprised by a frost after May 15 so make sure that you are ready to cover your endive in the event of a late frost.

USDA Zone Info for Onalaska

Here is the info for USDA Zone 4b.

Average Date of Last Frost (spring)	May 15
Average Date of First Frost (fall)	September 15
Lowest Expected Low	-25°F
Highest Expected Low	-20°F

This means that on a really cold year, the coldest it will get is -25°F. On most years you should be prepared to experience lows near -20°F.

Plants to Grow in Onalaska

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