Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The USDA zone info for Harper Woods can be read to estimate when it's possible to plant aurinia.

Planting Calendar for Aurinia

Frost tolerance for aurinia:	Very tolerant of frost.
When to plant:	Up to 7 weeks before last frost.

You can plant aurinia earlier in the year because they do well in cold.

The earliest that you can plant aurinia in Harper Woods 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 aurinia and expect a good harvest is probably September. You probably don't want to wait any later than that or else your aurinia may not have a chance to really do well. You can get started a couple of weeks earlier by starting your aurinia indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on April 15 in Harper Woods. In the coldest months of winter you can expect an average low temperature of -5°F.

Since the USDA zone info for Harper Woods is just an average the actual date of last frost changes from year to year. Since half of the time in Harper Woods you get a frost after April 15 be ready to cover your aurinia in the event of a surprise late frost.

USDA Zone Info for Harper Woods

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 Harper Woods

You may be interested in your other planting guides for Harper Woods.