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.

In Pleasant Hill you can estimate when it's a good idea to plant canna by looking at the USDA zone info.

Planting Calendar for Canna

Frost tolerance for canna:	Not tolerant of frost.
When to plant:	After all chance of frost has passed.

Canna do not do well in cold weather which means that you need to wait until it warms up after the last frost before you can plant them.

The earliest that you can plant canna in Pleasant Hill 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 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 April 15 in Pleasant Hill. In the coldest months of winter you should expect an average low temperature of -10°F.

Since the USDA zone info for Pleasant Hill may not be accurate from year to year the actual date of last frost is different every year. Since half of the time in Pleasant Hill you get a frost after April 15 be ready to protect your canna in the event of a surprise late frost.

USDA Zone Info for Pleasant Hill

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 Pleasant Hill

You may be interested in your other planting guides for Pleasant Hill.