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I am in a northern rural suburb (old orange grove) of Tampa 12 miles from the GOM and have had a double in the ground for about 7 years. The largest has about 5' of clear trunk and is flowering profusely now. This past Jan we had a 29 deg advective freeze(the 1st freeze since Jan of 2003) and it did not even spot, not a bit of leaf burn and this was completely uncovered, no protection...to my pleasant surprise. You see them all over coastal areas west of me and all over Sofla. About 5 feet away a Dypsis Cabadae had about 30% burn but is ok now-same with my Arch. Alex (true King).
On Jun 14, 2005, Cearbhaill from Russell, KY (Zone 6b) wrote:
A fabulous palm with zero problems in my climate. They are fast growing, cheap, and self prune- if you are thinking of a Queen Palm do yourself a favor and get a Solitaire instead!
On Dec 10, 2003, palmbob from Tarzana, CA (Zone 9b) wrote:
This is one of the only 'hardy' Ptychosperma species by So Cal standards... it can handle temps into the high 20F range without any problems. It is a pretty fast growing palm here and makes a great landscape specimen if keep out of the high, drying cold winds we get in the fall. It has arching leaves with wide, premorse (bitten off at the ends) leaflets). This is one of the few solitary Ptychosperma species (most sucker). It has many similar cultivational requirements as the common king palm.
Regional...
This plant has been said to grow in the following regions:
Rancho Cucamonga, California Santa Barbara, California Thousand Oaks, California Big Pine Key, Florida Boca Raton, Florida Cape Coral, Florida Fort Lauderdale, Florida Homestead, Florida Lake Worth, Florida Naples, Florida Odessa, Florida Pompano Beach, Florida Tampa, Florida