Help with my poorly Cordyline please !!

Evening All ,
Just joined the the Gardeners Corner in the hope any of you would be kind enough to give me advice / help with my favourite plant .
Up until a few weeks ago it was beautiful and green , the yellowing blotchy leaves are now rapidly moving up the plant and I've noticed the tips are all dry , even the newest leaves . I haven't watered for a while as I think I killed my red one last year by over watering , my little gadget that checks moisture in the pot is saying it's moist .
I took a leaf into my local garden centre and the young man said to plant it in the garden , if I do it will have to be in a mostly shaded area.
Hopefully someone can give me some idea what to do , I would be so sad to lose it
Thank you in advance , and sorry about the pics coming before the questions, it's my first post ☺️

 

Mine are looking a bit sick too, hope it`s not a repeat of that virus that killed such a lot about 8 years ago.

 

Lower leaves die off naturally as you probably know, so nothing to worry about the ones around the lower end.
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I'm tending to think the bloke at the garden centre was right, it needs to go in the ground, they can only really be used as a pot plant for a limited time, after which they get badly pot bound and starved.

Watering is also a problem as the pot contains more root than compost once they reach that size.

Dont know where you live or how cold you get in winter, but I would go for a sunny spot, and soak the rootball well before planting.
Then water well and deeply all this summer.

 

Yep. Take it out of the pot immediately and plant it in the ground. Soak it well.

 

That pots far too small for a plant of its size, they have quite an extensive root system of thick roots so need room to grow. I suspect you may need to break the pot to get it out.

 

Thank you all very much for your help

 

I remember that one @ARMANDII, I think it was a Yucca.

 

Firstly avoid the temptation to water it.
Cordylines are fine in pots...they simply grow more slowly that's all. Plus the architectural quality is enhanced in pots in my opinion.
However, a larger pot would be my next move.
Sam, I suspect you have used ordinary mpc which is not really satisfactory. Use a john Innes compost when you repot and I would add 20% perlite.
Site it in the warmest sunniest spot you have.
Cordylines want to make trees and to lose their lower leaves thus forming bare trunks. Growing in containers minimises this behaviour and keeps cordylines youthful for longer in my opinion