Before planting it is a good idea to find your USDA Zone info to determine 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 Zone 12b you can figure out when it's a good idea to plant lisianthus by reviewing the USDA zone info.

Planting Calendar for Lisianthus

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

Since lisianthus require warm weather it is important to wait until after all chance of frost has passed before you can plant them.

The earliest that you can plant lisianthus in Zone 12b 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 lisianthus and expect a good harvest is probably November. Any later than that and your lisianthus may not have a chance to fully mature. If you are starting your lisianthus indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

In Zone 12b it never frosts. You can expect an average low temperature of 55°F in the coldest months of winter.

Remember that the actual date of last frost may not be accurate from year to year because it is based on the USDA zone info for Zone 12b and it is different every year. Since it never frosts in Zone 12b you do not have to be ready to protect your lisianthus if you have a late frost.

USDA Zone Info for Zone 12b

Here is the info for USDA Zone 12b.

Average Date of Last Frost (spring)	Never
Average Date of First Frost (fall)	Never
Lowest Expected Low	55°F
Highest Expected Low	60°F

This means that on a really cold year, the coldest it will get is 55°F. On most years you should be prepared to experience lows near 60°F.

Plants to Grow in Zone 12b

You may be interested in your other planting guides for Zone 12b.