I have a Yucca, or a Cordyline Australis, not quite sure which.?

It has the leaves of this:


http://www.coolpalms.co.uk/shop/images/A...


with the furry trunk of this:


http://bp2.blogger.com/_7m-nNSHCETk/R6av...





Anyways, I inherited this tree when I moved into my house a few weeks back. I have done nothing to it whatsoever. It was all green when I moved in, but now the leaves are going yellow at the ends. Weather wise we have had both heavy showers and days of heat at a time.





Any ideas what (if anything) I should do? It is located right in the middle of the garden and is around eight feet tall. It's obviously been there for years so it can't be the location.

I have a Yucca, or a Cordyline Australis, not quite sure which.?
I think it is a cordyline. To make sure run your finger down the side of the leaf, if it does not feel sharp I am right. If ,however, you end up with a cut finger it is a yucca. Best bet is to put a bag of manure around it's roots and that should help it green up again.
Reply:Looks like a cordyline, and as suggested evergreen plants remove their old leaves by gradually killing them off. This is how it makes its trunk. Just carefully peel of the old ones if you don't like the look. If it is just getting rid of its old leaves only the bottom leaves will be effected.





Your rain may be upsetting it, heat shouldn't affect it . In Australia we use these in drought tolerant gardens. If this is the case as long as it has good drainage it will recover.
Reply:yucca: http://images.search.yahoo.com/search/im...





cordyline a: http://images.search.yahoo.com/search/im...





no clue why leaves are turning....fat lot of help I am...
Reply:When it makes new leaves,old ones are gradually starved and wither away,which increases the trunk height.


It's normal at this time of year.Cut off ugly leaves and watch out for new leaves forming
Reply:thats a cordy. very nice too. some plant food will help as well as the showers