When can I plant Violas in Zone 1a

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

You can determine when it's the best time to plant violas in Zone 1a by looking at the USDA zone info.


Planting Calendar for Violas

Frost tolerance for violas: Very tolerant of frost.
When you should plant them: Up to 7 weeks before last frost.

You can plant violas a lot earlier in the year because they are one of those plants that can tolerate quite a bit of cold weather.

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

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

Last Frost Date

The average date of last frost is June 15 in Zone 1a. In the coldest months of winter we should expect an average low temperature of -60°F.

Since the USDA zone info for Zone 1a may not be accurate from year to year our actual date of last frost changes from year to year. Since half of the time in Zone 1a there is a last frost after June 15 be ready to protect your violas in the event of one of those late frosts.

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 our other planting guides for Zone 1a.