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.

A common way of determining when you can plant jerusalem artichokes is to refer to the USDA zone info for Baton Rouge.

Planting Calendar for Jerusalem artichokes

Frost tolerance for jerusalem artichokes:	Tolerant of some frost.
When to plant:	Up to 5 weeks before last frost.

Since jerusalem artichokes are moderately cold tolerant you can plant them just a bit earlier in the year than plants that are more sensitive to the cold.

The earliest that you can plant jerusalem artichokes in Baton Rouge 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 jerusalem artichokes and expect a good harvest is probably September. You probably don't want to wait any later than that or else your jerusalem artichokes may not have a chance to fully mature. You can get started a little bit earlier by starting your jerusalem artichokes indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on March 15 in Baton Rouge. In the coldest months of winter you can expect an average low temperature of 15°F.

Since the USDA zone info for Baton Rouge is an average the actual date of last frost is different every year. Half of the time in Baton Rouge it frosts late in the year after March 15 so just be sure to be ready to cover your jerusalem artichokes in the event of a late frost.

USDA Zone Info for Baton Rouge

Here is the info for USDA Zone 8b.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	15°F
Highest Expected Low	20°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 20°F.

Plants to Grow in Baton Rouge

You may be interested in your other planting guides for Baton Rouge.