Before planting it is a good idea to find your USDA Zone info to figure out your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

You will be able to determine when it's the best time to plant aurinia by checking out the USDA zone info for Sheldon.

Planting Calendar for Aurinia

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

Aurinia can survive in pretty solid cold which tells us that you can plant them quite a bit earlier in the year than other frost tender plants.

The earliest that you can plant aurinia in Sheldon is March. However, you really should wait until April if you don't want to take any chances.

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

Last Frost Date

The average date of last frost is May 15 in Sheldon. In the coldest months of winter you can expect an average low temperature of -25°F.

Always keep in mind that USDA zone info for Sheldon is just an average and the actual date of last frost will vary from year to year. Half of the time in Sheldon it frosts late in the year after May 15 so make sure that you are prepared to protect your aurinia in the event of a surprise late frost.

USDA Zone Info for Sheldon

Here is the info for USDA Zone 4b.

Average Date of Last Frost (spring)	May 15
Average Date of First Frost (fall)	September 15
Lowest Expected Low	-25°F
Highest Expected Low	-20°F

This means that on a really cold year, the coldest it will get is -25°F. On most years you should be prepared to experience lows near -20°F.

Plants to Grow in Sheldon

You may be interested in your other planting guides for Sheldon.