One of the first steps you take when you are getting a good idea 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.

You can figure out when it's a good idea to plant mimulus in Slidell by checking out the USDA zone info.

Planting Calendar for Mimulus

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

It's probably not a good idea to plant mimulus until after the last frost when the weather gets warmer because they are not cold tolerant.

The earliest that you can plant mimulus in Slidell 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 mimulus and expect a good harvest is probably September. You probably don't want to wait any later than that or else your mimulus may not have a chance to really do well. You can get started a little bit earlier by starting your mimulus indoors.

Last Frost Date

The average date of last frost is February 15 in Slidell. It might get as low as 20°F during the coldest months of winter.

Since the USDA zone info for Slidell is just an average the actual date of last frost can change quite a bit from year to year. Half of the time in Slidell you get surprised by a frost after February 15 so make sure that you are ready to protect your mimulus if you have a surprise late frost.

USDA Zone Info for Slidell

Here is the info for USDA Zone 9a.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	20°F
Highest Expected Low	25°F

This means that on a really cold year, the coldest it will get is 20°F. On most years you should be prepared to experience lows near 25°F.

Plants to Grow in Slidell

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