One of the first steps you take when you are making a decision about your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

In Zone 9b you can figure out when to plant scutellaria by reviewing the USDA zone info.

Planting Calendar for Scutellaria

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

It's not a good idea to plant scutellaria until after all chance of frost has passed because they require warm weather.

The earliest that you can plant scutellaria in Zone 9b 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. You probably don't want to wait any later than that or else your scutellaria may not have a chance to grow to maturity. You can get started a little bit earlier by starting your scutellaria indoors.

Last Frost Date

On average the last frost has passed is on February 15 in Zone 9b. It might get as low as 25°F during the coldest months of winter.

Remember that USDA zone info for Zone 9b is just an average and the actual date of last frost changes from year to year. Half of the time in Zone 9b there is a last frost after February 15 so be sure to be ready to protect your scutellaria if you have one of those late frosts.

USDA Zone Info for Zone 9b

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 Zone 9b

You may be interested in your other planting guides for Zone 9b.