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.

In Marine City you can determine when to plant bishop's weed by checking out the USDA zone info.

Planting Calendar for Bishop's Weed

Frost tolerance for bishop's weed:	Very tolerant of frost.
When to plant:	Up to 7 weeks before last frost.

Since bishop's weed do well in cold you can plant them a lot earlier in the year than other plants that might not handle the cold.

The earliest that you can plant bishop's weed in Marine 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 bishop's weed and expect a good harvest is probably September. If you wait any later than that and your bishop's weed may not have a chance to really do well. You can get started a little bit earlier by starting your bishop's weed indoors.

Last Frost Date

The average date of last frost is April 15 in Marine City. You can expect an average low temperature of -10°F in the coldest months of winter.

Since the USDA zone info for Marine City is an average the actual date of last frost changes from year to year. Half of the time in Marine City there is a last frost after April 15 so make sure that you are ready to protect your bishop's weed if you have a surprise late frost.

USDA Zone Info for Marine City

Here is the info for USDA Zone 6a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-10°F
Highest Expected Low	-5°F

This means that on a really cold year, the coldest it will get is -10°F. On most years you should be prepared to experience lows near -5°F.

Plants to Grow in Marine City

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