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.

The USDA zone info for Lawrenceville should be looked at to figure out when it's the best time to plant lobelia.

Planting Calendar for Lobelia

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

Since lobelia do well in cold you can plant them earlier in the year than other frost tender plants.

The earliest that you can plant lobelia in Lawrenceville 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. If you wait any later than that and your lobelia may not have a chance to fully mature. Starting your lobelia indoors is a great way to get them started a few weeks earlier.

Last Frost Date

The average date of last frost is April 15 in Lawrenceville. You should expect an average low temperature of -10°F in the coldest months of winter.

Since the USDA zone info for Lawrenceville may not be accurate from year to year the actual date of last frost will vary from year to year. Half of the time in Lawrenceville last frost occurs after April 15 so be sure to be ready to cover your lobelia if you have one of those late frosts.

USDA Zone Info for Lawrenceville

Here is the info for USDA Zone 6a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-10°F
Highest Expected Low	-5°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 -5°F.

Plants to Grow in Lawrenceville

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