The USDA Zone info is a great tool for gardeners to help us determine 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.

By using the USDA zone info for Union City you will be able to estimate when you can plant mimulus.

Planting Calendar for Mimulus

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

Since mimulus do not do well in cold weather it's important to wait until after the last frost before you can plant them.

The earliest that you can plant mimulus in Union City is February. However, you really should wait until March 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 really do well. Starting your mimulus indoors is a great way to get them started a few weeks earlier.

Last Frost Date

On average all chance of frost has passed is on January 31 in Union City. In the coldest months of winter you can expect an average low temperature of 30°F.

Since the USDA zone info for Union City is an average the actual date of last frost changes from year to year. Since half of the time in Union City you get surprised by a frost after January 31 be ready to protect your mimulus if you have a late frost.

USDA Zone Info for Union City

Here is the info for USDA Zone 10a.

Average Date of Last Frost (spring)	January 31
Average Date of First Frost (fall)	December 15
Lowest Expected Low	30°F
Highest Expected Low	35°F

This means that on a really cold year, the coldest it will get is 30°F. On most years you should be prepared to experience lows near 35°F.

Plants to Grow in Union City

You may be interested in your other planting guides for Union City.