I read in a
seed catalog that mache (lamb's lettuce) can be grown in
seed flats. That is the entire growth period they're grown in the flats, from sowing the
seed until it's ready to be harvested. That is they wouldn't be transplanted to another container.
Would this really work or are
seed flats too shallow? If so, do you need to drill holes in the bottom of the flats for irrigation?
When I say
growing mache in flats, I'm talking about harvesting it when it's fully mature, NOT
growing it for a micro green.