R168 Burr. Stefan Isler '20'
|Temperature 55 - 85 Degrees Farenheit|
|Humidity 50% - 80%|
|Light 3000 foot candles|
|Balanced fertilizer (6N-2P-4K-2Ca-1Mg) @ 100-150ppm of nitrogen|
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|Burr. Stefan Isler '20'||Three foot tall branching sprays of red and orange flowers. This plant has been a mainstay in Europe for many years. I consider this an intermediate grower, but some in Florida have done well enough to order it a second time.|