The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

You should be able to determine when it's the best time to plant canna by checking out the USDA zone info for Lawrenceville.

Planting Calendar for Canna

Frost tolerance for canna:	Not tolerant of frost.
When to plant:	After the last frost.

You really shouldn't plant canna until after all chance of frost has passed because they do not do well in cold weather.

The earliest that you can plant canna in Lawrenceville is April. However, you really should wait until May if you don't want to take any chances.

The last month that you can plant canna and expect a good harvest is probably August. You probably don't want to wait any later than that or else your canna may not have a chance to fully mature. Starting your canna indoors is a great way to get them started a little bit earlier.

Last Frost Date

The average date of last frost is April 15 in Lawrenceville. In the coldest months of winter you can expect an average low temperature of 5°F.

Just be sure to remember that USDA zone info for Lawrenceville is an average and the actual date of last frost can change quite a bit from year to year. Half of the time in Lawrenceville you get surprised by a frost after April 15 so make sure that you are prepared to protect your canna if you have a surprise late frost.

USDA Zone Info for Lawrenceville

Here is the info for USDA Zone 7b.

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

This means that on a really cold year, the coldest it will get is 5°F. On most years you should be prepared to experience lows near 10°F.

Plants to Grow in Lawrenceville

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