I hold a Yucca, or a Cordyline Australis, not fairly sure which.? It has the leaves of this: http://www.coolpalms.co.uk/shop/images/A... near the furry...

It has the leaves of this:
http://www.coolpalms.co.uk/shop/images/A...
near 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 posterior. I have done zilch to it whatsoever. It was adjectives green when I moved in, but presently the leaves are going yellow at the ends. Weather learned we have have both heavy showers and days of warmth at a time.

Any ideas what (if anything) I should do? It is located right surrounded by the middle of the garden and is around eight feet elevated. It's obviously be there for years so it can't be the location.
yucca: http://images.search.yahoo.com/search/im...

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

no clue why leaves are turning.flabby lot of help I am...
Looks like a cordyline, and as suggested evergreen plants remove their older leaves by gradually butchery them off. This is how it make its trunk. Just carefully coat of the old ones if you don't approaching the look. If it is just getting rid of its weak leaves only the bottom leaves will be effect.

Your rain may be upsetting it, warmth shouldn't affect it . In Australia we use these in drought tolerant gardens. If this is the grip as long as it has suitable drainage it will recover.
Answers:    I estimate it is a cordyline. To make sure run your finger down the side of the palm leaf, if it does not feel sharp I am right. If ,however, you train up with a cut finger it is a yucca. Best bet is to put a case of manure around it's roots and that should relief it green up again.
When it make new leaves,infirm ones are gradually starved and wither away,which increases the trunk elevation.
It's normal at this time of year.Cut rotten ugly leaves and view out for new leaves forming