One of the first steps you take when you are estimating your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

In Muscle Shoals you can determine when it's the best time to plant canna by referring to the USDA zone info.

Planting Calendar for Canna

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

Since canna are not cold tolerant it is necessary to wait until after all chance of frost has passed before you can plant them.

The earliest that you can plant canna in Muscle Shoals 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. If you are starting your canna indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

On average the last frost is on April 15 in Muscle Shoals. In the coldest months of winter you can expect an average low temperature of 5°F.

Since the USDA zone info for Muscle Shoals is just an average the actual date of last frost is different every year. Half of the time in Muscle Shoals last frost occurs 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 Muscle Shoals

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 Muscle Shoals

You may be interested in your other planting guides for Muscle Shoals.