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 can figure out when it's the best time to plant dallas fern in Zone 1a by looking at the USDA zone info.

Planting Calendar for Dallas Fern

Frost tolerance for dallas fern:	Not tolerant of frost.
When to plant:	After the last frost.

Since dallas fern are not cold tolerant you need to wait until after the last frost when the weather gets warmer before you can plant them.

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

The last month that you can plant dallas fern and expect a good harvest is probably July. You probably don't want to wait any later than that or else your dallas fern may not have a chance to really do well. If you are starting your dallas fern indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

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

Always keep in mind that the actual date of last frost is not always accurate because it is based on the USDA zone info for Zone 1a and it changes from year to year. Half of the time in Zone 1a you get a frost after June 15 so make sure that you are prepared to cover your dallas fern 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 your other planting guides for Zone 1a.