Learn to make your own potash if you plan to plant. Also, keep some local trees with insecticidal/fungicidal qualities around you, pesticide is a bitch to make modern ones from and you will have to make do.
Oh and a bird net of some sort.
IMO prepping for the average person shouldn't focus on some autistic kind of "siege survival" unless you actually have an entire community backing you up, and even then...who knows.
Honestly, the best thing you can have is a community to back you up. You can't do everything, so find people who think alike and where you can pull your own weight. Make sure to specialize in something that the others can't.
I feel like there's also a chance that you could be a transient until you find such a group, but that's pretty risky and I'm not sure if the trust issues can be overcome.
assuming you live in the first world famine is almost completely impossible
I disagree, fertilizer, chemicals, irrigation parts are all on 6+ month backorder where I'm at (in the US), and that's
if it gets delivered.
We lost several major ornamental nurseries during last year due to extreme weather + not being able to repair parts, fucking took me 8 months to "properly" repair a busted line because of a missing injector/components.
Lots of nigger rigging right now for us. Hell, I had to wire and soldier the automation for watering by hand because the previous dial broke. So now it's a bunch of solenoids connected to a shitty mechanical clock hand contraption I designed and built.