I have had a Phrag. Wossner Super Grande for 7 years and not one single bloom. Every year or two I repot it cleaning away all dead roots etc. The roots look good and I always have several new growths which I am getting now. I use a phrag mix and it is getting dappled west sun in afternoon as it is under a dogwood. I live in Ohio so temps can get hot in the summer but we also have high humidity. My leaves are a lighter green than I have seen on posted blooming ones. What do I do to get this stubborn plant to bloom?
Try giving them temperature therapy....Most Phrags prefer intermediate temperatures with nights in the upper 50's to the mid 60's then let them enjoy the day temperatures in your zone....in this cooler temps, keep them somewhat drier as well, not soggy wet.
Yes I will move my plant to east morning light and then it will get afternoon shade and I will water it as much as possible not allowing it to become soggy. I do think my mix is ok and I will bring it in at the first sign of cold.
Thanks so much and here's hoping for the best outcome ---a spike !!