If what I read you got popped with is accurate then your definitely doing some time. And 100% you'll have to cop to a felony. If you have a really good attorney and this is your first offense then you might only get 12-18 months, maybe 2 years at the most.
But a 18 month sentence in Cali means you'll be out in 3-4 months for a first time non-violent offender. You'll likely only miss 1 harvest.
First off, in Cali, there are no 12 month Sentences for a Felony...State Prison Terms start at 16 Months--
The least you can do in Cali Prisons is half your time-- There are no "Early Kicks" like in County Jail--
Courts here routinely give Felony Probation for high plant counts...my close buddy got that, for over 750 plants--
Krunch has a Medical Defense, I would bet $$ that he see's no Jail/Prison time for this--