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

In Lewistown you can figure out when it's the best time to plant dallas fern by referring to 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 has passed.

It's probably not a good idea to plant dallas fern until after the last frost when the weather gets warmer because they require warm weather.

The earliest that you can plant dallas fern in Lewistown is April. However, you really should wait until May 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 August. Any later than that and your dallas fern may not have a chance to grow to maturity. Starting your dallas fern indoors is a great way to get them started a little bit earlier.

Last Frost Date

On average all chance of frost has passed is on April 15 in Lewistown. In the coldest months of winter you should expect an average low temperature of -5°F.

Since the USDA zone info for Lewistown is an average the actual date of last frost is different every year. Half of the time in Lewistown there is a last frost after April 15 so make sure that you are prepared to cover your dallas fern if you have one of those late frosts.

USDA Zone Info for Lewistown

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 Lewistown

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