One of the best tools that you have as gardeners to help us figure out your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

A common way of estimating when to plant aegopodium is to refer to the USDA zone info for Howell.

Planting Calendar for Aegopodium

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

You can plant aegopodium a lot earlier in the year because they are very cold tolerant.

The earliest that you can plant aegopodium in Howell 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 really do well. You can get started a couple of weeks earlier by starting your aegopodium indoors.

Last Frost Date

On average all chance of frost has passed is on April 15 in Howell. It might get as low as -10°F during the coldest months of winter.

Since the USDA zone info for Howell is just an average the actual date of last frost can change quite a bit from year to year. Since half of the time in Howell it frosts late in the year after April 15 be ready to cover your aegopodium if you have one of those late frosts.

USDA Zone Info for Howell

Here is the info for USDA Zone 6a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-10°F
Highest Expected Low	-5°F

This means that on a really cold year, the coldest it will get is -10°F. On most years you should be prepared to experience lows near -5°F.

Plants to Grow in Howell

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