Before planting it is a good idea to find your USDA Zone info to figure out 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.

The earliest that you can plant lobelia in Arkadelphia should be figured out by using the USDA zone info.

Planting Calendar for Lobelia

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

Since lobelia are very cold tolerant you can plant them earlier in the year than other plants that might not handle the cold.

The earliest that you can plant lobelia in Arkadelphia 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. Any later than that and your lobelia may not have a chance to grow to maturity. You can get started a few weeks earlier by starting your lobelia indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on March 15 in Arkadelphia. In the coldest months of winter you should expect an average low temperature of 10°F.

Since the USDA zone info for Arkadelphia is an average the actual date of last frost can change quite a bit from year to year. Half of the time in Arkadelphia you get surprised by a frost after March 15 so just be sure to be ready to cover your lobelia if you have a late frost.

USDA Zone Info for Arkadelphia

Here is the info for USDA Zone 8a.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	10°F
Highest Expected Low	15°F

This means that on a really cold year, the coldest it will get is 10°F. On most years you should be prepared to experience lows near 15°F.

Plants to Grow in Arkadelphia

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