Leppa berries HELP

[PokeMasta95]

So i have looked at the guide but still have problems . 

When i want to keep growing my own leppas so i can keep using sweet scent . 
What i need to do to farm it most effectively ? 
I have a wailmer can and those cut things that u use on berries .  
Question is how to get berries or do i need specific berries . Do i use the Snatch move to get an item from an specific wild pokemon to get the berries for the seeds of the leppa ? 

Very spice 2x , sour , bitter .        Which berries does those seeds give ? Where which poke i need snatch it off . 

Also i cannot plant 4 seeds , only 3 seed places there are to be placed . But i need 4 ? ...

Whats the most effective way to farm all that . I dont want run around and search those marks on ground to get berries  .thx

[Gravemind93]

Before I forgot, use these. They're a big help.

http://www.mediafire.com/convkey/6d85/qxxxggmm3bganv46g.jpg

http://www.mediafire.com/convkey/511a/a3eoiji5raow1nx6g.jpg

http://www.mediafire.com/convkey/ac42/kr94sna3hxu0hr66g.jpg

(1 or 2 of the berry pictures are wrong, but the names and all other info seemed to check out and that's all you need anyway.)

1 hour ago, PokeMasta95 said:

Also i cannot plant 4 seeds , only 3 seed places there are to be placed . But i need 4 ? ...

Seeds that are "Very-" (such as Very Dry) count as "2" So you would use a Very Spicy seed, and a normal Sour and a normal Bitter for a Leppa. (the order they're put in doesn't matter btw)

Berries will only harvest the flavor of seeds that went into them, semi-randomly across the flavors(if it has multiple flavors) with "Very" seeds being less likely to be harvested. So something like a Leppa would harvest Spicy, Sour, and Bitter seeds with a small(25%? Don't quote me on that. Just feels around that) chance of them being "Very"