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.

By referring to the USDA zone info for Franklin you should be able to estimate when it's the best time to plant anchusa.

Planting Calendar for Anchusa

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

Anchusa are very cold tolerant which means that you can plant them much earlier than more sensitive plants.

The earliest that you can plant anchusa in Franklin 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. If you are starting your anchusa indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

On average the last frost is on April 15 in Franklin. You should expect an average low temperature of 0°F in the coldest months of winter.

It's important to remember that USDA zone info for Franklin is an average and the actual date of last frost can change quite a bit from year to year. Since half of the time in Franklin you get surprised by a frost after April 15 be ready to cover your anchusa in the event of one of those late frosts.

USDA Zone Info for Franklin

Here is the info for USDA Zone 7a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	0°F
Highest Expected Low	5°F

This means that on a really cold year, the coldest it will get is 0°F. On most years you should be prepared to experience lows near 5°F.

Plants to Grow in Franklin

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