One of the first steps you take when you are determining your gardening schedule is find your USDA Zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

By using the USDA zone info for Lewistown it's possible to figure out when it's possible to plant trailing portulaca.

Planting Calendar for Trailing Portulaca

Frost tolerance for trailing portulaca:	Not tolerant of frost.
When to plant:	After all chance of frost has passed.

You should not plant trailing portulaca until after the last frost has passed because they are not cold tolerant.

The earliest that you can plant trailing portulaca 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 trailing portulaca and expect a good harvest is probably August. You probably don't want to wait any later than that or else your trailing portulaca may not have a chance to grow to maturity. You can get started a couple of weeks earlier by starting your trailing portulaca indoors.

Last Frost Date

The average date of last frost is April 15 in Lewistown. It might get as low as -5°F during the coldest months of winter.

Always keep in mind that USDA zone info for Lewistown is an average and the actual date of last frost can change quite a bit from year to year. Since half of the time in Lewistown it frosts late in the year after April 15 be ready to cover your trailing portulaca 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.