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

A common way of making a decision about when it's possible to plant lunaria is to refer to the USDA zone info for Bismarck.

Planting Calendar for Lunaria

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

Lunaria do well in mild cold which means that you can plant them a little earlier in the year than other frost tender plants.

The earliest that you can plant lunaria in Bismarck 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 lunaria and expect a good harvest is probably August. If you wait any later than that and your lunaria may not have a chance to really do well. Starting your lunaria indoors is a great way to get them started a few weeks earlier.

Last Frost Date

The average date of last frost is May 15 in Bismarck. You can expect an average low temperature of -30°F in the coldest months of winter.

It's important to remember that USDA zone info for Bismarck may not be accurate from year to year and the actual date of last frost is different every year. Since half of the time in Bismarck it frosts late in the year after May 15 be ready to protect your lunaria in the event of a late frost.

USDA Zone Info for Bismarck

Here is the info for USDA Zone 4a.

Average Date of Last Frost (spring)	May 15
Average Date of First Frost (fall)	September 15
Lowest Expected Low	-30°F
Highest Expected Low	-25°F

This means that on a really cold year, the coldest it will get is -30°F. On most years you should be prepared to experience lows near -25°F.

Plants to Grow in Bismarck

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