none. use the itemfinder in multiple locations in berry forest to find berries.
I read on another question that you go to viridan city and look in grass
You can probably get one by using the super rod near any of the routes that you get to at the end of the game.
No. But you can find them in the ground. Poke'mon Master
mostly berries but they can also pick up rare candy pp up and very rarely a nugget
The only way to use berries in FireRed and LeafGreen is to berry crush with another FireRed, LeafGreen, or Emerald using GAMEBOYS (DS wont work) and 2 wireless adapters
routes 1 21 and 20
In Pokemon LeafGreen, to get a Ninetails, you must first capture a Vulpix. Vulpix can be found on Routes 7 and 8, and in the Pokemon Mansion. Once you have obtained a Vulpix, a Fire Stone is needed to evolve it into a Ninetails.
You can't grow berries in Leafgreen, so get 6 meowth. (Pickup ability) battle low-level Pokemon, checking the party every now and then. If they don't have items already, Meowth have a chance of obtaining a berry for you after each battle.
It is found on Routes 209 and 214 but only if the leafgreen cartridge is in the Gameboy slot
Pokemon mansion floors: 1f, 2f, 3f & B1 also on routes 7&8you have to trade from firered
you can't plant berries this is exclusive only to gold, silver, crystal, ruby, sapphire, emerald, diamond, pearl, platinum. the reason why is because game freak wanted firered and leafgreen to be exactly like Pokemon blue, red, yellow, and green with a few changes.
Routes 13-5; Cerulean cave F1, 2 and B1; Pokémon mansion B1.
You can find them anywhere around the routes of kanto so look in the grass.
You can probably get one by using the super rod near any of the routes that you get to at the end of the game.
I read on another question that you go to viridan city and look in grass
If you ever noticed on your travels black dots around those are berries press A on a black dot to receive a berry. Also if you capture certain Pokemon they may be already holding a berry as well.
Yes you can trade leafgreen version Pokemon to another leafgreen version.