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.

It's possible to estimate when it's the best time to plant canna by using the USDA zone info for Oldsmar.

Planting Calendar for Canna

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

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 Oldsmar is March. However, you really should wait until April 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. If you wait any later than that and your canna may not have a chance to grow to maturity. Starting your canna indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

On average the last frost when the weather gets warmer is on February 15 in Oldsmar. You should expect an average low temperature of 25°F in the coldest months of winter.

Since the USDA zone info for Oldsmar is just an average the actual date of last frost will vary from year to year. Half of the time in Oldsmar you get surprised by a frost after February 15 so just be sure to be ready to protect your canna if you have one of those late frosts.

USDA Zone Info for Oldsmar

Here is the info for USDA Zone 9b.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	25°F
Highest Expected Low	30°F

This means that on a really cold year, the coldest it will get is 25°F. On most years you should be prepared to experience lows near 30°F.

Plants to Grow in Oldsmar

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