Worm castings as growing medium?

[melodious fellow]

About 3 years ago, I tried worm castings with perlite for seedlings and clones once. Made a muddy mess, and nothing grew.
By the looks of it after the attempt, the castings clogged up the perlite, and so it got no areation.
Still use it for my soil mix, but after buying 15 lbs I still have most of it left.

I read in a grow guide once that worm castings were the ultimate soil supplement and that they were so rich, one could grown in pure worm castings. It also said that they were so expensive though that this would be way impractical.

But after reading Stinky and Rusty's experiences, fuck that

melodious fellow Reviewed by melodious fellow on 02-22-2008. Worm castings as growing medium? I have the opportunity to get my hands on a sizable amount of weed-free worm castings, well over 100lbs if I desire, and I was curious if anyone has ever used a casting/perlite-only mix to grow their plants? I always have some castings on hand to add to my soil mix, but I've never tried substituting it alone for all other organic matter. Would this be too "hot" even for plants well into veg? If anyone has ever done this, please let me know how it worked out for you. Include, if possible, Rating: 5