Have you tried asking on the tree forum? There's also a palm forum. Are there different species? If so and if you don't know the species, it may make that question harder to answer, if some are more hardy than others. Who can use 'if' in a sentence more times than that?

No I haven't had them seed. I have had one for many years and acquired the other this fall. I really like them but they are hard to move around and take up lot of room in the greenhouse, but worth the pain I guess. :) On another note when I first got interested in palms I had a small sago that I stuck under the house in the crawl space one winter because I ran out of places to put plants. I thought oh well if it lives fine if it dies fine. Come spring I pulled it out and it looked exactly the same as the day I put it under the house. Not that I still do that but that's another option to keep them from flushing. :)

GREAT QUESTION JIM! my first memory of palms was at my grandmas house seeing this very tall palms. at the time i didnt no what kind they were but ever since i was very young palms always caught my eye, though i didnt think much of it. my grandmas house is in the city of south El Monte about 15 mins. from downtown LA. i bet most no wut palm am talking about now, good ole mexican fan palm! i think i was about 12 or 13 but i remember asking my dad if we can dig one up at my grandmas house and bring it home since most got mowed anyway and if they made it to their 1st or 2nd year they ended up getting dug up and tossed in the trash, but he said no cuz they get to big & messy =( i never thought about them again. that is until i was 18. i was at my uncles house and a palm caught my eyes, the same one as at my grandmas(still didnt no the name of it.) which is weird cuz i no i came across tons of palms before now but i just notice them again. i started asking him questions about it like how long hes had it for & wut kind it was. he didnt no wut kind of palm it was and said it just grew there. i guess he sensed that i was intrigued by it so he said come back in spring and he'll help me dig it up to take to my house. this time i didnt ask, i just told my parents that i was gona plant a palm tree in the front of the house & that it'll make the house look nice lol! THATS WHEN IT BEGAN! ive been addicted ever since.i wouldnt call it a hobby of mine but a passion. & it kept me out of trouble for the most part. it kind of seems like they were suppose to be in my life in a funny way! i dont no wut i would be doing if they didnt come along & keep me busy. anyways washingtonia robusta were my first palms then phoenix canaries, brahea armata, then at 22 i tried germinating palm seeds for the first time. now 24 years old i grow (most) of my palms i have with over 30 different kinds of palms/cycads & totaling close to over 300. then finding this forum it started getting me into yuccas,cactus,agaves,bananas & now ive come to admire my native joshua trees! tune in to pics now that their starting to fruit!!! everyone on here opened my eyes to different plants. now i cant wait till spring/summer. i got alot to do & grow plus i cant wait to see everyones pics! its gona be a great year, not only does my girlfriend encourage my addiction but she'll buy me palms on my birthdays on holidays & out of the blue palm/seeds gift! wut more could a man want? besides for her to be as simple as me wen it comes to gifts lol! am slowly teaching our daughter everything i no about palms and plants so she one day might admire & love them as much as me but she definitely knows to stay away from the pokey ones & she even has her own palm! which is funny cuz shes only 2-1/2 & by the time shes in high school it'll be like 20ft tall! im looking forward to all those pics & ill post some come spring. i hope winters almost done for all of us(fingers crossed) so we can get back to our lives lol! jk nr!

" I once had one survivea cold winter in Siuth Jersey in which it reached -6f! ,,,The mulched Sago flushed a new set of leaves to replace the leaves it lost in the bitterly cold winter." What was it mulched with, 3 rolls of corning fiberglass lain in a criss-cross pattern, forming a 6' high, 15' diameter mound? Yes enough mulch can protect almost anything, within reason, but it eventually becomes a not practical thing to do. At least with a plant like that. Probably more impressive: I had a small Cycas panzhihuaensis recover from 3F with very little mulching. Alas, I gave up on getting them to survive around here because it's a little wetter in winter here than western suburban DC and they just need to be drier than I can give them, apparently. Furthermore that might be a plant that doesn't get much hardier with age, or even gets less hardy with age...for various reasons too complicated to go into. Definitely more impressive: the last C. panzhihuaensis I had came back up from the ground after a full two years of "playing dead". Apparently it has some ability for the growth point to go into a long term senescence or dormancy. Maybe an adaptation to things like volcanic eruptions which caused brief mini ice-ages? They have been on this earth for a while. Alas, not surprisingly polar winter #1 finished it off for good. In retrospect I probably should have dug it up and coddled it for a few more years, but I was tired of dealing with them by then. (yes I know that post was from 2006, so it was a rhetorical reply) BTW you see large ones along the Gulf, and inland to some degree like Baton Rouge, so they can survive down to 15F as long as it's infrequent. Probably a zn 9 plant but cultivated in some sheltered, warmer parts of 8. I'm pretty sure that mature outdoor ones do _not_ defoliate with a brief dip to 25F.