Before planting it is a good idea to find your USDA Zone info to figure out your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

In Carnegie you can estimate when it's the best time to plant mimulus by reviewing 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.

You really shouldn't plant mimulus until after the last frost when the weather gets warmer because they do not do well in cold weather.

The earliest that you can plant mimulus in Carnegie 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 fully mature. You can get started a couple of weeks earlier by starting your mimulus indoors.

Last Frost Date

In Carnegie the average date of last frost happens on April 15. In the coldest months of winter you can expect an average low temperature of -5°F.

It's important to remember that USDA zone info for Carnegie is an average and the actual date of last frost changes from year to year. Half of the time in Carnegie you get a frost after April 15 so make sure that you are ready to cover your mimulus in the event of one of those late frosts.

USDA Zone Info for Carnegie

Here is the info for USDA Zone 6b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-5°F
Highest Expected Low	0°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 0°F.

Plants to Grow in Carnegie

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