Solo plastic cups
 

I have a few questions regarding the use of the Solo plastic cups. How many holes should one
make? How big? (obviously smaller than the growing media) Do I make the holes along the bottom
and the sides? I realize this sounds simple but I do not want my plants under nourished (too many
holes that drains to fast) or drowning. Thanks David

I burn a lot of holes all around the sides about half way up the cup but none in the bottom to keep
the roots from growing straight down the pipes. Here is a picture of the cup and soldering iron.
Ron