Calochortus potting mix
Hi all, I wanted to ask if anyone knows what ratio I should mix my ingredients at for these calochortus bulbs I am planting in my anderson deep trays. I have coarse DG (1/16”-1/4”), washed sharp sand (1/16”-1/8”), pumice (1/16”-1/4”), and red lava (1/16”-1/4”) for grit. Should I use my trays to sift out everything smaller than the drainage holes (3/16”)? For organics, I have a mix of (70%coco coir/30%coco chips), and mini fir bark at my disposal. I am aware PBS articles say everything above 1.6mm (1/16”) is ideal for grit size, but I have seen different people recommend so many different things for grit size as well as overall mineral:organic ratio. My goal is to grow these mature bulbs as well as seeds to flowering age (I know this will take years), and then plant them in ground. They will be exposed to natural Morgan Hill rainfall and will be moved to shade and kept dry by May. What ratios and grit sizes work for you - if you have done this? Thank you so much guys!