When to Plant Canna in Zone 11a

One of the first steps you take when you are estimating your gardening schedule is find your USDA Zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

You can determine when it's a good idea to plant canna in Zone 11a by checking out the USDA zone info.


Planting Calendar for Canna

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

You can not plant canna until after the last frost when the weather gets warmer because they require warm weather.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant canna
Possibly ok, but a risky time to plant canna
Probably not a good time to plant canna

The earliest that you can plant canna in Zone 11a is January. However, you really should wait until February if you don't want to take any chances.

The last month that you can plant canna and expect a good harvest is probably November. You probably don't want to wait any later than that or else your canna may not have a chance to really do well. Starting your canna indoors is a great way to get them started a few weeks earlier.

Last Frost Date

In Zone 11a it never frosts. You can expect an average low temperature of 40°F in the coldest months of winter.

It's important to remember that USDA zone info for Zone 11a is an average and the actual date of last frost is different every year. Since it never frosts in Zone 11a you do not have to be ready to cover your canna in the event of one of those late frosts.

USDA Zone Info for Zone 11a

Here is the info for USDA Zone 11a.

Average Date of Last Frost (spring)Never
Average Date of First Frost (fall)Never
Lowest Expected Low40°F
Highest Expected Low45°F

This means that on a really cold year, the coldest it will get is 40°F. On most years you should be prepared to experience lows near 45°F.

Plants to Grow in Zone 11a

You may be interested in your other planting guides for Zone 11a.