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

It's a good idea to determine when it's possible to plant lobelia by using the USDA zone info for Pittsburg.

Planting Calendar for Lobelia

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

Lobelia do well in cold which means that you can plant them much earlier than other plants that might not handle the cold.

The earliest that you can plant lobelia in Pittsburg is January. However, you really should wait until February if you don't want to take any chances.

The last month that you can plant lobelia and expect a good harvest is probably October. Any later than that and your lobelia may not have a chance to really do well. You can get started a little bit earlier by starting your lobelia indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on February 15 in Pittsburg. In the coldest months of winter you can expect an average low temperature of 25°F.

Always keep in mind that USDA zone info for Pittsburg may not be accurate from year to year and the actual date of last frost can change quite a bit from year to year. Half of the time in Pittsburg it frosts late in the year after February 15 so make sure that you are prepared to cover your lobelia in the event of a surprise late frost.

USDA Zone Info for Pittsburg

Here is the info for USDA Zone 9b.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	25°F
Highest Expected Low	30°F

This means that on a really cold year, the coldest it will get is 25°F. On most years you should be prepared to experience lows near 30°F.

Plants to Grow in Pittsburg

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