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.

A way of determining when it's possible to plant bunching onions is to examine the USDA zone info for De Witt.

Planting Calendar for Bunching Onions

Frost tolerance for bunching onions:	Tolerant of a very small amount of frost.
When to plant:	Up to 3 weeks before last frost.

Bunching Onions are one of those plants that can tolerate a tiny bit of cold weather which means that you can start planting them slightly earlier than other plants that might not handle the cold.

The earliest that you can plant bunching onions in De Witt 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 bunching onions and expect a good harvest is probably August. If you wait any later than that and your bunching onions may not have a chance to really do well. You can get started a little bit earlier by starting your bunching onions indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on April 15 in De Witt. It might get as low as -20°F during the coldest months of winter.

Since the USDA zone info for De Witt is not always accurate the actual date of last frost will vary from year to year. Since half of the time in De Witt there is a last frost after April 15 be ready to protect your bunching onions if you have a late frost.

USDA Zone Info for De Witt

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 De Witt

You may be interested in your other planting guides for De Witt.