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.

The USDA zone info for Creswell should be reffered to in order to figure out when it's the best time to plant canna.

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 the last frost before you can plant them.

The earliest that you can plant canna in Creswell 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. Any later than that and your canna may not have a chance to fully mature. You can get started a little bit earlier by starting your canna indoors.

Last Frost Date

The average date of last frost is March 15 in Creswell. It might get as low as 15°F during the coldest months of winter.

Since the USDA zone info for Creswell is just an average the actual date of last frost changes from year to year. Half of the time in Creswell there is a last frost after March 15 so make sure that you are prepared to protect your canna if you have a late frost.

USDA Zone Info for Creswell

Here is the info for USDA Zone 8b.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	15°F
Highest Expected Low	20°F

This means that on a really cold year, the coldest it will get is 15°F. On most years you should be prepared to experience lows near 20°F.

Plants to Grow in Creswell

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