Angraecum viguieri is native to northern and central Madagascar (Province of Antsiranana and Toamasina , Cribb & Hermans 2009). Thy occur in Humid, evergreen forest on plateau and mossy ridge-top forest from the elevations of 900-1100m. Based on the elevation range, I was growing it at a warm end of intermediate temperature for 7 years; the max/min daily temperature is 29-27/21-24C (80-85/70-75F) in the summer and 18-21/16-18C (65-70/60-65F) in the winter. It kept growing, but I didn't get any flowers. In September 2021, I removed it from the mount and potted it. That's why the stem has the bonsai-like bent. I also moved it to a cooler area; the max/min daily temperature is 29/18C (84/65F) in the summer and 21/13C (70/55F) in the winter. And I finally got rewarded with the fragrant flower this year. The cooler area also gives more seasonal variation in the temperature, compared to the relatively constant temperature of the basement....
Plants, Orchids, and Life in North