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

In Marietta you can figure out when you can plant melampodium by using the USDA zone info.

Planting Calendar for Melampodium

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

It's a bad idea to plant melampodium until after the last frost has passed because they do not do well in cold weather.

The earliest that you can plant melampodium in Marietta is April. However, you really should wait until May 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 fully mature. Starting your melampodium indoors is a great way to get them started a little bit earlier.

Last Frost Date

On average the last frost is on April 15 in Marietta. You should expect an average low temperature of 5°F in the coldest months of winter.

Keep in mind that USDA zone info for Marietta is an average and the actual date of last frost changes from year to year. Half of the time in Marietta there is a last frost after April 15 so make sure that you are prepared to protect your melampodium in the event of a surprise late frost.

USDA Zone Info for Marietta

Here is the info for USDA Zone 7b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	5°F
Highest Expected Low	10°F

This means that on a really cold year, the coldest it will get is 5°F. On most years you should be prepared to experience lows near 10°F.

Plants to Grow in Marietta

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