potting mix

Hi everybody I have recently seen videos of brasilian growers of Walkerian Cattleya recommending Macadamia shells as a culture substrate. Do any of you use it? And where can you buy it? thank you

I’m fairly new to Paph. growing , although I’ve been growing orchids for over 35 years now) and after a lot of research, I decided to focus mainly on Pahiopedilum helenae of which I currently have 4 plants of different sources now and 2 more coming next month. I’m a sucker for small and...

For scale, this is on a piece of 1/4 - 3/8 inch Orchiata bark and some small perlite pieces. Can anyone ID these? Are they harmful?

At an orchid show in February a vendor told me to always soak my orchids before fertilizing lest I risk root tip burn. My weekly watering routine now consists of allowing my plants to soak in water for awhile while I get other tasks done (usually water changes for my fish tanks, since I’m...