@Cerebral Goo not only do they stay moist but seeds seem to pop fast in them! Last 2 soaked seeds for 24hrs but no tail so planted anyway and both were breaking thru in just under 24hrs! Some leave hole open but i take off a tiny pinch of the material and use it like a cap to close off hole seed goes into! I had a big issue over or underwatering jiffy pucky or pots if i direct plant but yet to lose a seed in the plugs! I did just remember tho mine are rapid rooters since had em in stock at ace hardware around the corner from me!