Before planting it is a good idea to find your USDA Zone info to estimate 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.

A way of making a decision about when you can plant scutellaria is to refer to the USDA zone info for Vallejo.

Planting Calendar for Scutellaria

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

It's probably not a good idea to plant scutellaria until after the last frost because they require warm weather.

The earliest that you can plant scutellaria in Vallejo 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 scutellaria and expect a good harvest is probably September. Any later than that and your scutellaria may not have a chance to grow to maturity. If you are starting your scutellaria indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

The average date of last frost is February 15 in Vallejo. It might get as low as 25°F during the coldest months of winter.

Just be sure to remember that USDA zone info for Vallejo is an average and the actual date of last frost will vary from year to year. Since half of the time in Vallejo last frost occurs after February 15 be ready to cover your scutellaria if you have a surprise late frost.

USDA Zone Info for Vallejo

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 Vallejo

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