Northern Cal. is a big area so just saying that you shouldn't have to worry. I metioned that vft's are in NC and SC but I know just from that nobody will be able to find any. I lived right in the middle of where vft's, S.flava, S.rubra,S.purpurea,S.minor, countless sundews, butterworts and bladderworts, but I never saw any until last year. So unless you have some inside info you won't find them.