One of the first steps you take when you are estimating 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.

One way of estimating when to plant trachelium is to check out the USDA zone info for Dubuque.

Planting Calendar for Trachelium

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

Since trachelium do not do well in cold weather it's important to wait until after the last frost before you can plant them.

The earliest that you can plant trachelium in Dubuque 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 trachelium and expect a good harvest is probably August. If you wait any later than that and your trachelium may not have a chance to really do well. You can get started a few weeks earlier by starting your trachelium indoors.

Last Frost Date

On average the last frost is on April 15 in Dubuque. In the coldest months of winter you should expect an average low temperature of -20°F.

Keep in mind that USDA zone info for Dubuque is an average and the actual date of last frost can change quite a bit from year to year. Half of the time in Dubuque there is a last frost after April 15 so make sure that you are ready to cover your trachelium in the event of one of those late frosts.

USDA Zone Info for Dubuque

Here is the info for USDA Zone 5a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-20°F
Highest Expected Low	-15°F

This means that on a really cold year, the coldest it will get is -20°F. On most years you should be prepared to experience lows near -15°F.

Plants to Grow in Dubuque

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