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.

The USDA zone info for La Mesa can be reviewed to estimate when it's the best time to plant plectranthus.

Planting Calendar for Plectranthus

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

It's probably a bad idea to plant plectranthus until after the last frost when the weather gets warmer because they do not do well in cold weather.

The earliest that you can plant plectranthus in La Mesa 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 plectranthus and expect a good harvest is probably September. Any later than that and your plectranthus may not have a chance to really do well. Starting your plectranthus indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

On average all chance of frost has passed is on January 31 in La Mesa. You can expect an average low temperature of 30°F in the coldest months of winter.

Since the USDA zone info for La Mesa is an average the actual date of last frost will vary from year to year. Half of the time in La Mesa there is a last frost after January 31 so just be sure to be ready to cover your plectranthus if you have a surprise late frost.

USDA Zone Info for La Mesa

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 La Mesa

You may be interested in your other planting guides for La Mesa.