Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The best time to plant lithospermum in Placentia can be figured out by checking out the USDA zone info.

Planting Calendar for Lithospermum

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

It's probably a bad idea to plant lithospermum until after the last frost because they require warm weather.

The earliest that you can plant lithospermum in Placentia 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 lithospermum and expect a good harvest is probably September. Any later than that and your lithospermum may not have a chance to fully mature. You can get started a couple of weeks earlier by starting your lithospermum indoors.

Last Frost Date

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

Always keep in mind that USDA zone info for Placentia is an average and the actual date of last frost will vary from year to year. Since half of the time in Placentia you get surprised by a frost after January 31 be ready to cover your lithospermum in the event of a surprise late frost.

USDA Zone Info for Placentia

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 Placentia

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