Before planting it is a good idea to find your USDA Zone info to estimate 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.

The USDA zone info for Lewistown should be used to estimate when it's the best time to plant aegopodium.

Planting Calendar for Aegopodium

Frost tolerance for aegopodium:	Very tolerant of frost.
When to plant:	Up to 7 weeks before last frost.

Since aegopodium are one of those plants that can tolerate quite a bit of cold weather you can plant them much earlier in the year than other frost tender plants.

The earliest that you can plant aegopodium in Lewistown is March. However, you really should wait until April if you don't want to take any chances.

The last month that you can plant aegopodium and expect a good harvest is probably August. If you wait any later than that and your aegopodium may not have a chance to fully mature. You can get started a couple of weeks earlier by starting your aegopodium indoors.

Last Frost Date

On average the last frost is on May 15 in Lewistown. It might get as low as -30°F during the coldest months of winter.

Just be sure to remember that USDA zone info for Lewistown is an average and the actual date of last frost will vary from year to year. Half of the time in Lewistown you get surprised by a frost after May 15 so make sure that you are prepared to cover your aegopodium if you have a surprise late frost.

USDA Zone Info for Lewistown

Here is the info for USDA Zone 4a.

Average Date of Last Frost (spring)	May 15
Average Date of First Frost (fall)	September 15
Lowest Expected Low	-30°F
Highest Expected Low	-25°F

This means that on a really cold year, the coldest it will get is -30°F. On most years you should be prepared to experience lows near -25°F.

Plants to Grow in Lewistown

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