The USDA Zone info is a great tool for gardeners to help us determine 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 figure out when it's possible to plant canna by looking at the USDA zone info for Port Jefferson.

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 you have to wait until after all chance of frost has passed before you can plant them.

The earliest that you can plant canna in Port Jefferson 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 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

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

Always keep in mind that USDA zone info for Port Jefferson is just an average and the actual date of last frost will vary from year to year. Since half of the time in Port Jefferson you get surprised by a frost after April 15 be ready to protect your canna in the event of a surprise late frost.

USDA Zone Info for Port Jefferson

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 Port Jefferson

You may be interested in your other planting guides for Port Jefferson.