where can i get all natural peat moss?

[PoopSmart]

I saw some at home depot today, but I am pretty sure it had fertilizer in it so I didn't get it. Please tell me where I can find some sort of peat to use as a safe buffer in a discus tank.

I have seen fluval's peat filter media, but it was discontinued on every website I have been on.

 

[ShadowStryder]

Around here you can go to any nursery and buy by the bales, and
very cheap. They also sell in smaller amounts.