The USDA Zone info is a great tool for gardeners to help us estimate 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.

A way of figuring out when it's the best time to plant canna is to examine the USDA zone info for Shamokin.

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

The earliest that you can plant canna in Shamokin 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 couple of weeks earlier.

Last Frost Date

The average date of last frost is April 15 in Shamokin. It might get as low as -10°F during the coldest months of winter.

Always keep in mind that USDA zone info for Shamokin is not always accurate and the actual date of last frost can change quite a bit from year to year. Since half of the time in Shamokin it frosts late in the year after April 15 be ready to cover your canna in the event of one of those late frosts.

USDA Zone Info for Shamokin

Here is the info for USDA Zone 6a.

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

Plants to Grow in Shamokin

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