How does peat moss affect nutrient availability for orchids?
I'm currently cultivating a collection of rare orchids in my home greenhouse in Florida, and I've been researching the best substrate combinations to optimize their growth. In the past, I've used a mix of bark and sphagnum moss, but I've recently read about the potential uses of peat moss. My concern is whether peat moss might limit nutrient availability due to its high acidity and low cation exchange capacity. Given my experience in botany, I understand the importance of nutrient bioavailability, but I'm curious about how peat moss interacts specifically with the needs of orchids. Can I amend peat moss to enhance its nutrient profile, or do I need to consider alternative amendments? Any insights from fellow orchid enthusiasts or experts would be greatly appreciated!