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

One way of making a decision about when to plant canna is to consult the USDA zone info for Glendora.

Planting Calendar for Canna

Frost tolerance for canna:	Not tolerant of frost.
When to plant:	After the last frost.

Canna are not cold tolerant which tells us that it is important to wait until it warms up after the last frost has passed before you can plant them.

The earliest that you can plant canna in Glendora is February. However, you really should wait until March if you don't want to take any chances.

The last month that you can plant canna and expect a good harvest is probably September. 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 little bit earlier.

Last Frost Date

The average date of last frost is January 31 in Glendora. In the coldest months of winter you should expect an average low temperature of 30°F.

It's important to remember that USDA zone info for Glendora may not be accurate from year to year and the actual date of last frost can change quite a bit from year to year. Since half of the time in Glendora it frosts late in the year after January 31 be ready to cover your canna in the event of a surprise late frost.

USDA Zone Info for Glendora

Here is the info for USDA Zone 10a.

Average Date of Last Frost (spring)	January 31
Average Date of First Frost (fall)	December 15
Lowest Expected Low	30°F
Highest Expected Low	35°F

This means that on a really cold year, the coldest it will get is 30°F. On most years you should be prepared to experience lows near 35°F.

Plants to Grow in Glendora

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