When to Plant Aurinia in Zone 1a

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

By using the USDA zone info for Zone 1a it's a good idea to figure out when 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.

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

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant aurinia
Possibly ok, but a risky time to plant aurinia
Probably not a good time to plant aurinia

The earliest that you can plant aurinia in Zone 1a is May. However, you really should wait until June if you don't want to take any chances.

The last month that you can plant aurinia and expect a good harvest is probably July. You probably don't want to wait any later than that or else your aurinia may not have a chance to grow to maturity. Starting your aurinia indoors is a great way to get them started a few weeks earlier.

Last Frost Date

In Zone 1a the average date of last frost happens on June 15. It might get as low as -60°F during the coldest months of winter.

Always keep in mind that USDA zone info for Zone 1a may not be accurate from year to year and the actual date of last frost will vary from year to year. Half of the time in Zone 1a you get surprised by a frost after June 15 so be sure to be ready to protect your aurinia if you have a surprise late frost.

USDA Zone Info for Zone 1a

Here is the info for USDA Zone 1a.

Average Date of Last Frost (spring)June 15
Average Date of First Frost (fall)July 15
Lowest Expected Low-60°F
Highest Expected Low-55°F

This means that on a really cold year, the coldest it will get is -60°F. On most years you should be prepared to experience lows near -55°F.

Plants to Grow in Zone 1a

You may be interested in your other planting guides for Zone 1a.