The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

You will be able to estimate when you can plant lunaria by reviewing the USDA zone info for Grand Haven.

Planting Calendar for Lunaria

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

Since lunaria do well in moderate cold you can plant them just a bit earlier in the year than other frost tender plants.

The earliest that you can plant lunaria in Grand Haven 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 lunaria and expect a good harvest is probably September. Any later than that and your lunaria may not have a chance to really do well. You can get started a couple of weeks earlier by starting your lunaria indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on April 15 in Grand Haven. You should expect an average low temperature of -5°F in the coldest months of winter.

Since the USDA zone info for Grand Haven may not be accurate from year to year the actual date of last frost will vary from year to year. Since half of the time in Grand Haven you get surprised by a frost after April 15 be ready to protect your lunaria in the event of a surprise late frost.

USDA Zone Info for Grand Haven

Here is the info for USDA Zone 6b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-5°F
Highest Expected Low	0°F

This means that on a really cold year, the coldest it will get is -5°F. On most years you should be prepared to experience lows near 0°F.

Plants to Grow in Grand Haven

You may be interested in your other planting guides for Grand Haven.