The USDA Zone info is a great tool for gardeners to help us determine your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

By using the USDA zone info for Marshall it's possible to determine when to plant melampodium.

Planting Calendar for Melampodium

Frost tolerance for melampodium:	Not tolerant of frost.
When to plant:	After all chance of frost has passed.

Since melampodium do not do well in cold weather it is necessary to wait until after the last frost before you can plant them.

The earliest that you can plant melampodium in Marshall 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 grow to maturity. Starting your melampodium indoors is a great way to get them started a few weeks earlier.

Last Frost Date

In Marshall the average date of last frost happens on March 15. It might get as low as 15°F during the coldest months of winter.

Remember that USDA zone info for Marshall is just an average and the actual date of last frost can change quite a bit from year to year. Since half of the time in Marshall you get surprised by a frost after March 15 be ready to protect your melampodium if you have one of those late frosts.

USDA Zone Info for Marshall

Here is the info for USDA Zone 8b.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	15°F
Highest Expected Low	20°F

This means that on a really cold year, the coldest it will get is 15°F. On most years you should be prepared to experience lows near 20°F.

Plants to Grow in Marshall

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