How to Rebloom a Dendrobium Orchid: Den Phal and Nobile

In this guide, I’ll explain how to rebloom both the Den-Phal and the Dendrobium Nobile, which are the most common Dendrobiums found in markets. They have very unique and distinct reblooming requirements.
A Dendrobium Nobile will rebloom yearly when a reduction of 20 to 30% in water has occurred, temperatures have dropped to 55° F or 13° C during fall and winter, and when potassium levels are increased.
A Dendrobium Phalaenopsis will rebloom up to three times a year when watering is slightly decreased during fall and winter, but all other conditions remain the same.