Don't plan on using the garden as much for alchemy but more for the cooking.
I already know I'll have wheat for flour
And I know that I can't grow all the ingredients (some farm plants are missing...)
But I play a stealth archer, and use regen food mostly with garlic bread for diseases (Breton btw)
What I'm looking for is a good blend of farm/ingredient plants that mainly maximizes cooking (for the homestead garden, vs the lair/magus lots which are of course alchemy specialized)