One of the first steps you take when you are making a decision about 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.

A way of making a decision about when it's possible to plant mimulus is to refer to the USDA zone info for Wickenburg.

Planting Calendar for Mimulus

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

Mimulus are not cold tolerant which means that you have to wait until it warms up after the last frost has passed before you can plant them.

The earliest that you can plant mimulus in Wickenburg 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. Starting your mimulus indoors is a great way to get them started a little bit earlier.

Last Frost Date

On average the last frost has passed is on February 15 in Wickenburg. In the coldest months of winter you should expect an average low temperature of 20°F.

Always keep in mind that USDA zone info for Wickenburg is just an average and the actual date of last frost can change quite a bit from year to year. Half of the time in Wickenburg there is a last frost after February 15 so just be sure to be ready to protect your mimulus in the event of one of those late frosts.

USDA Zone Info for Wickenburg

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 Wickenburg

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