A save file advertising "all plants unlocked" includes even the rarest Mint plants (Enforce-mint, Conceal-mint, etc.) and the elusive Gemiums (Jewel of the Garden).
If you find that a standard PP.DAT doesn't work, you might need a "Hot" as well. Recent updates (v10.7+) moved some unlock parameters into the OBB. Searching for ppdat hot now sometimes implies a bundle: plants vs zombies 2 all plants unlocked max level ppdat hot
All plants are boosted to their level caps (e.g., Level 200 for many). A save file advertising "all plants unlocked" includes
Tips & tricks:
Most modded files set plants to Mastery 200 , meaning your Peashooters will shred through Gargantuars in seconds. plants vs zombies 2 all plants unlocked max level ppdat hot