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

By checking out the USDA zone info for Mcminnville you should be able to determine when it's the best time to plant mimulus.

Planting Calendar for Mimulus

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

It's probably not a good idea to plant mimulus until after the last frost because they require warm weather.

The earliest that you can plant mimulus in Mcminnville 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 grow to maturity. If you are starting your mimulus indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

On average all chance of frost has passed is on March 15 in Mcminnville. You should expect an average low temperature of 15°F in the coldest months of winter.

Since the USDA zone info for Mcminnville is an average the actual date of last frost changes from year to year. Since half of the time in Mcminnville there is a last frost after March 15 be ready to cover your mimulus in the event of a late frost.

USDA Zone Info for Mcminnville

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 Mcminnville

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