Soil won't drain, stunting plants.

Use fabric pots.

I use 3 parts Ocean Forest to 1 part pearlite and have great drainage and your soil looks about like mine. When I water I will apply a thin layer to the soil surface. It stays on top and does not soak in immediately but within a minute it soaks in and wets the soil. After that it accepts water almost as fast as I can pour it on.

Hi there, IMO if you want a good drainage pot, go 1:1:1 ratio for soil,coco,perlite.And If you want a best drainage go 70/30 coco/perlite mix.I sometimes get problems with poor drainage ,especially when I want to grow orgainically with dry organic amendments.Too much dried organic matters make the soil hard and difficult for water penetration.BTW I always put marble stone at the bottom of the pot for extra good drainage.Good luck and happy growing... ✌️