The folks at Sasquatch Soil from Auburn, California, have released a soil mix which is long lasting, and living with a fully plant based diet, ultimately extending the potential of your plant's longevity.
A beastly blend of organic input materials: compost, worm castings, mushroom compost, fish meal, mycorrhizal fungi, limestone, gypsum, forest humus, volcanic rock, perlite, trace minerals, humic acid, forest fiber materials.
