Quote Originally Posted by Rusty Trichome
Unless properly buffered and lightened-up, (ammended) compost and worm castings are really too heavy to use for indoors. Makes a muddy mess that will suffocate roots, and can screw with flowering. (stretches plant, prolong's flowering) Likely the existing source of nitrogen (compost and castings) are doing their organic job, and slowly releasing their elements as they break-down. You can't add perlite once plant is in the pot. (unless you can carefully tuck the perlite under/around/inbetween the roots) It get's mixed-in to the soil before use.
Nice. Whats a good proportion of perlite mixed with soil? 1/4th perlite and 3/4 soil? (im just guessing)