I just recently purchased some white and red pampas grass. I knew that gallon containers should be planted at least 6-8′ apart since pampas grass grows quite large. The plants I purchased are 6-8″ tall. Should I plant 2 together or plant each one next to each other or several feet apart? Any advice will be welcomed.
This article will give you guidelines on how to plant your pampas grass:
Basically you will want to plant your clumps of pampas grass at least 6" apart.