I cut a circular slit in the rockwool to plant the arugula seeds. (My wife says all I need is a little smile on the plate now.)
July 5, 2015
Cutting a circle out of the rockwool didn’t work as well as just cutting a hole in the middle and planting the arugula. So I’m going to mark this as ‘failure’ since it might be better to just cut out a hole.