Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

A common way of making a decision about when to plant canna is to refer to the USDA zone info for Somerdale.

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's important to wait until after the last frost before you can plant them.

The earliest that you can plant canna in Somerdale 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 grow to maturity. If you are starting your canna indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

The average date of last frost is April 15 in Somerdale. In the coldest months of winter you can expect an average low temperature of 0°F.

Since the USDA zone info for Somerdale is an average the actual date of last frost is different every year. Since half of the time in Somerdale it frosts late in the year after April 15 be ready to cover your canna if you have a surprise late frost.

USDA Zone Info for Somerdale

Here is the info for USDA Zone 7a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	0°F
Highest Expected Low	5°F

This means that on a really cold year, the coldest it will get is 0°F. On most years you should be prepared to experience lows near 5°F.

Plants to Grow in Somerdale

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