I am building several raised beds, using salvaged stone from a local blasting area. I need suggestions on how to keep the cement chinking from cracking in the cold weather. I've heard if you mix peat moss in with the cement, it will be less likely to crack.

Also, any recommendations on the best kind of cement mix to use would be appreciated... (I'm trying to find something affordable... and I'm mixing by hand.)

Thanx! Meadow Lark