Washingtonia robusta
By Brutus33
Lancashire/ Manchester,
United Kingdom 
Can I overwinter my young washingtonia robusta in the hallway under the 24/7 light.Thanks
14 Aug, 2009
Answers
Thank you very much.Will see what winter we get this year in Manchester.Take care and thanks again.
Gabriel
15 Aug, 2009
Not sure its necessary - they'll survive up to -8 degrees C, though you may get some damage to the leaves under -5C. Would be better outside if you can give it a bit of protection by moving it to a sheltered spot, fleece, etc.
14 Aug, 2009