One of the best tools that you have as gardeners to help us figure out your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

By using the USDA zone info for Bay City you should be able to determine when it's a good idea to plant lunaria.

Planting Calendar for Lunaria

Frost tolerance for lunaria:	Tolerant of some frost.
When to plant:	Up to 5 weeks before last frost.

Lunaria are one of those plants that can tolerate a little bit of cold weather which means that you can plant them earlier than other plants that might not handle the cold.

The earliest that you can plant lunaria in Bay City is January. However, you really should wait until February if you don't want to take any chances.

The last month that you can plant lunaria and expect a good harvest is probably October. If you wait any later than that and your lunaria may not have a chance to grow to maturity. Starting your lunaria indoors is a great way to get them started a few weeks earlier.

Last Frost Date

In Bay City the average date of last frost happens on February 15. It might get as low as 20°F during the coldest months of winter.

Since the USDA zone info for Bay City may not be accurate from year to year the actual date of last frost changes from year to year. Since half of the time in Bay City you get surprised by a frost after February 15 be ready to protect your lunaria if you have a late frost.

USDA Zone Info for Bay City

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 Bay City

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