not wild about perlite,use wood chips,best is kiddie wood chips same as on play grounds,doesnt take long for them to break down,in mean time is great for air and spongy wood absorbs the feeds,im convinced perlite is not only just a filler so soil manufacture sell you less soil and fillers,but every pot i have broke apart have noticed just hard as a rock,soil will pack around it and really just useless imo,chips are sponge and hold on the feed as good as bio char,then breaks down real good to humus in a no till,if you have forest around you,take a day and go find a dead tree been laying there about 10 yrs and kick it and watch the humus come out,there is your humus and air,leave the plant in container cut plant off at soil level,plant another seed right beside the stalk,then you have your hiway of roots already there for more air exchange and roots love it,buy the time those break down it be harvest time for next bunch if you dig