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

A way of estimating when you can plant lobelia is to refer to the USDA zone info for Shreveport.

Planting Calendar for Lobelia

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

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

The earliest that you can plant lobelia in Shreveport 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 lobelia and expect a good harvest is probably September. You probably don't want to wait any later than that or else your lobelia may not have a chance to fully mature. If you are starting your lobelia indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

The average date of last frost is March 15 in Shreveport. You should expect an average low temperature of 15°F in the coldest months of winter.

Keep in mind that USDA zone info for Shreveport is just an average and the actual date of last frost will vary from year to year. Half of the time in Shreveport last frost occurs after March 15 so just be sure to be ready to protect your lobelia in the event of a late frost.

USDA Zone Info for Shreveport

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 Shreveport

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