One of the first steps you take when you are determining your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

By reviewing the USDA zone info for Mandan you will be able to figure out when it's the best time to plant melampodium.

Planting Calendar for Melampodium

Frost tolerance for melampodium:	Not tolerant of frost.
When to plant:	After the last frost.

It's a bad idea to plant melampodium until after the last frost has passed because they require warm weather.

The earliest that you can plant melampodium in Mandan is May. However, you really should wait until June if you don't want to take any chances.

The last month that you can plant melampodium and expect a good harvest is probably August. If you wait any later than that and your melampodium may not have a chance to really do well. You can get started a couple of weeks earlier by starting your melampodium indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on May 15 in Mandan. It might get as low as -30°F during the coldest months of winter.

It's important to remember that USDA zone info for Mandan may not be accurate from year to year and the actual date of last frost can change quite a bit from year to year. Half of the time in Mandan it frosts late in the year after May 15 so be sure to be ready to cover your melampodium if you have a late frost.

USDA Zone Info for Mandan

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 Mandan

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