One of the best tools that you have as gardeners to help us figure out your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The first opportunity to plant mimulus in Marseilles should be determined by checking out the USDA zone info.

Planting Calendar for Mimulus

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

Since mimulus are not cold tolerant you have to wait until after the last frost has passed before you can plant them.

The earliest that you can plant mimulus in Marseilles 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 mimulus and expect a good harvest is probably August. If you wait any later than that and your mimulus may not have a chance to really do well. You can get started a few weeks earlier by starting your mimulus indoors.

Last Frost Date

The average date of last frost is April 15 in Marseilles. It might get as low as -15°F during the coldest months of winter.

Since the USDA zone info for Marseilles may not be accurate from year to year the actual date of last frost can change quite a bit from year to year. Since half of the time in Marseilles it frosts late in the year after April 15 be ready to cover your mimulus if you have a late frost.

USDA Zone Info for Marseilles

Here is the info for USDA Zone 5b.

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

Plants to Grow in Marseilles

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