I decided to cut some slits in the side of the solo cups this time. Sort of a low budget
smart pot.
It seems like the more air flow the better. I used to puncture one tiny hole in the bottom of cups. Why? Like I'm doling out a little bit of air. This is the first time I'm using these pressed peat cups, which is almost like the whole cup is air flow. But if I went with plastic cups (which is just fine), I think now I would puncture many holes in the bottom, bottom sides.......of course, then we can't water quickly and let it start running out, but we shouldn't be watering quickly anyway. Other than flash flood downpours, it doesn't rain a half inch all at once, it's steady, over time. I'm sure I'm overstating it all, it's not rocket science. Fluffy soil, good air flow, a good thorough watering, no dry pockets, oxygen to the roots, let the soil dry out a bit between waterings, don't over water, repeat.
Yeah I gotta do the thing where I try to plant the seeds the right way. They can't all be perfect, and some shifting will occur but might as well give them the best shot. I hate that......when they pop upside-down, and get a rough start.....I'm sure we all do. ;)