One of the first steps you take when you are figuring out your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

By referring to the USDA zone info for Casselberry you should be able to figure out when to plant torenia.

Planting Calendar for Torenia

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

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

The earliest that you can plant torenia in Casselberry 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 torenia and expect a good harvest is probably September. Any later than that and your torenia may not have a chance to fully mature. Starting your torenia indoors is a great way to get them started a little bit earlier.

Last Frost Date

The average date of last frost is February 15 in Casselberry. In the coldest months of winter you should expect an average low temperature of 25°F.

Since the USDA zone info for Casselberry may not be accurate from year to year the actual date of last frost is different every year. Half of the time in Casselberry last frost occurs after February 15 so make sure that you are prepared to cover your torenia if you have a surprise late frost.

USDA Zone Info for Casselberry

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 Casselberry

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