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.

The USDA zone info for Covina should be reviewed to determine when it's possible to plant scutellaria.

Planting Calendar for Scutellaria

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

It's a bad idea to plant scutellaria until after the last frost when the weather gets warmer because they require warm weather.

The earliest that you can plant scutellaria in Covina 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 scutellaria and expect a good harvest is probably September. You probably don't want to wait any later than that or else your scutellaria may not have a chance to fully mature. You can get started a couple of weeks earlier by starting your scutellaria indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on January 31 in Covina. It might get as low as 30°F during the coldest months of winter.

Keep in mind that USDA zone info for Covina is an average and the actual date of last frost is different every year. Since half of the time in Covina you get a frost after January 31 be ready to cover your scutellaria if you have a surprise late frost.

USDA Zone Info for Covina

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 Covina

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