Hello everyone,
I have always taken care of these plants due to sentimental value because a family member brought one shoot from Thailand around 15 yrs ago.
They propagate by new shoots growing next to each other. The leaves turn from green to yellow when larger but here they haven't grown as much. I think the soil is not the correct Ph or acidity. When the leaves grow and start turning yellow, some red spots start forming and even along the central vein you can see a red line. The leaves then get damaged, rot, and die. The central newer leaves do stay healthy but this cycle has not allowed them to grow bigger.
I would like to know what they are so I can take care of them better by improving the soil and fetilizer. I have tried Milorganite and it seems to be working, but cycle continues. Many years ago, they were growing in another property near the ocean and they were bright yellow and huge like some big bromeliads we have. These are only about 1.5 ft tall and the ones on the pictures are as big as they get after around 4 years of growth in my backyard.
I was thinking about testing with different kinds of soil combinations, from sandy to lose bark and maybe even throwing some coffe grinds on one of them to see if it has any positive effect. It would be easier if someone could help me figure out what species they are and care of them correctly.
Thank you for your help!
