I grow here every year.....Northern Cal covers a lot of real estate..Elevation determines first frost a lot of times....I have not seen frost before Thanksgiving in 10 years. I am at 2900 foot elevation. I would imagine most harvests are done by Turkey day....Any growers in norcal that know how long you can you flower for until the frost?
Should make it till middle of October before it's frosty. Inland or coastal mountains?ya I am at 3,200 elevation
I think your bigger concern will be rain... I've heard rumors of another El Nino this year. I am crossing my fingers though.