What's best for an outdoor Yucca?

[coffeetasteslikeshit]

I've got a huge yucca plant which I just don't have room for indoors anymore but which I would like to keep as I've had it for 28 years. Last year it survived outside on our south facing decking in Cornwall. But it was very mild last year and I don't want to risk it again.
I've been thinking of buying a green house, but it would take up a lot of space in our garden, so then I thought about one of those cheap plastic ones. Do you think that would suffice during a frost?
I'm not a great gardener.... so if anyone has any suggestions then I'm very happy to hear them. Thank you.

I've no experience of Yuccas at all, but here are some links that may help; the second item may be an American site I think:

www.palmcentre.co.uk/winter-protection

www.gardeningknowhow.com/ornamental/foliage/yucca/yucca-cold-weather.htm

www.amazon.co.uk/Warming-PROTECTION-Fleece-Jacket-140x200cm/dp/B006H1MIY2

I had a yucca, bought from M&S when I lived in the UK ( London) Like yours, it got too big, so I stuffed it into the ground, full west. No problems.

Having said that, London, as I'm sure you know, has a micro-climate, though frost were not unknown.

I'm looking out of my window now at similar yucca, now on its fourth chop to keep it in its place in frost-free Melbourne.

Mine was from M&S too echt

Thanks for replying both of you, I will check out those links Ferguson.

Apparently they can withstand temperatures as low as -12 C!

Look like I won't be needing a greenhouse then...

they grow like weeds. When mine reach 20 foot I chop them down and give away the logs on Freegle. Just poke them into dug-over soil and they root.

Snow no prob

we have yukkas hubby had as a student, some even flower which was a surprise to me. they live outside in the garden. When we had REALLY bad cold patch a few years ago the top bit of one of them died off (all local cordylines and palm trees and things suffered too) but we chopped it off and the rest has carried on very happily. They are much more hardy than you would think.