Before planting it is a good idea to find your USDA Zone info to estimate 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.

It's possible to estimate when it's the best time to plant aurinia by referring to the USDA zone info for Caldwell.

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 means that you can plant them much earlier in the year than other plants that might not handle the cold.

The earliest that you can plant aurinia in Caldwell 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 fully mature. You can get started a couple of weeks earlier by starting your aurinia indoors.

Last Frost Date

On average all chance of frost has passed is on April 15 in Caldwell. It might get as low as -5°F during the coldest months of winter.

Just be sure to remember that USDA zone info for Caldwell is not always accurate and the actual date of last frost is different every year. Half of the time in Caldwell last frost occurs after April 15 so make sure that you are ready to protect your aurinia in the event of a surprise late frost.

USDA Zone Info for Caldwell

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 Caldwell

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