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

One way of estimating when it's the best time to plant canna is to check out the USDA zone info for Stuttgart.

Planting Calendar for Canna

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

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

The earliest that you can plant canna in Stuttgart 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. If you wait any later than that and your canna may not have a chance to really do well. 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

In Stuttgart the average date of last frost happens on March 15. In the coldest months of winter you should expect an average low temperature of 10°F.

Since the USDA zone info for Stuttgart may not be accurate from year to year the actual date of last frost will vary from year to year. Since half of the time in Stuttgart you get surprised by a frost after March 15 be ready to cover your canna if you have a surprise late frost.

USDA Zone Info for Stuttgart

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 Stuttgart

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