One of the first steps you take when you are figuring out your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

In Highwood you can figure out when it's possible to plant aegopodium by looking at the USDA zone info.

Planting Calendar for Aegopodium

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

Since aegopodium do well in cold you can plant them a lot earlier in the year than other frost tender plants.

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

The last month that you can plant aegopodium and expect a good harvest is probably September. If you wait any later than that and your aegopodium may not have a chance to fully mature. If you are starting your aegopodium indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

The average date of last frost is April 15 in Highwood. You can expect an average low temperature of -15°F in the coldest months of winter.

Remember that USDA zone info for Highwood is not always accurate and the actual date of last frost changes from year to year. Half of the time in Highwood last frost occurs after April 15 so make sure that you are ready to protect your aegopodium if you have one of those late frosts.

USDA Zone Info for Highwood

Here is the info for USDA Zone 5b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-15°F
Highest Expected Low	-10°F

This means that on a really cold year, the coldest it will get is -15°F. On most years you should be prepared to experience lows near -10°F.

Plants to Grow in Highwood

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