Before planting it is a good idea to find your USDA Zone info to figure out your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

In Carthage you can figure out when you can plant anchusa by referring to the USDA zone info.

Planting Calendar for Anchusa

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

Anchusa can survive in quite a bit of cold which means that you can plant them much earlier in the year than more sensitive plants.

The earliest that you can plant anchusa in Carthage 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 anchusa and expect a good harvest is probably September. If you wait any later than that and your anchusa may not have a chance to really do well. Starting your anchusa indoors is a great way to get them started a few weeks earlier.

Last Frost Date

On average the last frost when the weather gets warmer is on April 15 in Carthage. In the coldest months of winter you can expect an average low temperature of -5°F.

Remember that USDA zone info for Carthage is just an average and the actual date of last frost will vary from year to year. Half of the time in Carthage there is a last frost after April 15 so be sure to be ready to cover your anchusa if you have a surprise late frost.

USDA Zone Info for Carthage

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 Carthage

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