The USDA Zone info is a great tool for gardeners to help us estimate your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

A way of figuring out when it's the best time to plant mimulus is to look at the USDA zone info for Highland.

Planting Calendar for Mimulus

Frost tolerance for mimulus:	Not tolerant of frost.
When to plant:	After the last frost when the weather gets warmer.

Since mimulus require warm weather you need to wait until after all chance of frost has passed before you can plant them.

The earliest that you can plant mimulus in Highland 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. 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 couple of weeks earlier.

Last Frost Date

In Highland the average date of last frost happens on February 15. In the coldest months of winter you can expect an average low temperature of 25°F.

Keep in mind that USDA zone info for Highland may not be accurate from year to year and the actual date of last frost will vary from year to year. Half of the time in Highland last frost occurs after February 15 so just be sure to be ready to protect your mimulus in the event of a late frost.

USDA Zone Info for Highland

Here is the info for USDA Zone 9b.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	25°F
Highest Expected Low	30°F

This means that on a really cold year, the coldest it will get is 25°F. On most years you should be prepared to experience lows near 30°F.

Plants to Grow in Highland

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