Sansevieria Species, Snake Plant

Central Phoenix -- As with many Sansevieria, the identification is difficult. I believe what I have is S. rhodesiana. It is a medium he...Read Moreight, fan shaped plant with cylindrical leaves mostly without a canal. An individual grown in an outdoors pot did not survive several weeks of freeze in 2013, but an in-ground plant has now survived, with cover, down to 26 F and many mild freezing nights without cover. It grows in strong shade in summer and light in winter. It gets summer water every other week and none in winter.
A month after this entry we bought a Sansevieria from the Desert Botanical Garden that was identified as S. pearsonii. It is quite different than the one we have that is theoretically at any rate, S. rhodesiana. I think the synonymy given on this page of S. pearsonii and rhodesiana is incorrect. Chahinian 2005 says S. pearsonii is from Angola while S. rhodesiana is from Zimbabwe.