Have to agree that Cordylines, as a species, are some of the hardiest tropical plants around - love 'em.

My personal picks probably tend toward the darker red-to-black hybrids : 'Rubra' and 'Negra', as they seem to deal with whatever aspect they are given. Also love Petiolaris, but not sure how many have ready access to it in their local nurseries.

Cheers,

Artie

Roy

Sounds like you might need to have a bit of heat for your Cordylines, Jay.

You have a lovely big collection, well done.

The Cordylines you are growing are most likely to be cultivars of Cordyline australis which is actually a New Zealand plant. These are probably the most cold tolerant of any Cordylines as they are the most southerly found of any species. The Kiwis may have some good information for you on growing them but also gardeners from southern Australia in New South Wales and Victoria.

Here in Queensland they are hopeless as they tend to suffer and eventually collapse in the almost constant summer humidity. One that is commonly sold here as 'Red Sensation' seems to have some resistance in recent years but this year I have noticed a heap of them collapsing also. So it seems we have the reverse problem with growing them here. The most successful for us are the C. fruticosa varieties and of course our locally found natives.
Andrew.