Quote:
Originally Posted by kittygilchrist
Here is author and text of the UF publication I cited elsewhere not recommending queens here. Sumter is zone 9a.
People can plant them anyway, and many continue to do so.
Syagrus romanzoffiana: Queen Palm1
Timothy K. Broschat2
The queen palm is a popular feather-leaved palm with graceful arching leaves (Fig. 1). It is one of the hardiest of the tropical-looking palms, being suitable for planting in USDA plant hardiness zone 9B (>25°F). Queen palms are considered to be moderately tolerant of salt spray. They can reach heights up to 50 ft with a spread of 20–25 ft.
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Very good, 25 degrees is close enough. Completely accurate if you are growing seedlings, as they do not withstand the cold the adult palms we plant in this area will take. He is teaching people who plan to own and run nurseries. You can drop the temp to 22 and add zone 9A when you are talking adult trees. Maybe he wrote that too in his one book on palms, and you forgot to cut and paste that?
Schooled in N. Dak., Kansas and Ohio and his specialty is woody ornamentals and nutrient disorders and utilization. He is THE MAN when it come to the Ixora. There are better go tos at UF and through out the SE US on palms imho