My purple cordylines are dying - why?

I planted these late september - having bought from the garden centre. The 2 small ones died within a month - they look like straggly straw all wilted against the ground surface - my larger one now looks to be heading the same way! They are planted in soil beds with weed fabric covered by pebbles

My purple cordylines are dying - why?
If you are UK I have possible answer.A lot of shrubs and trees are force grown in tunnels from outside of the uk nowadays and brought over to the uk to our garden centres ,to be bought in cheaper than our home grown plants( they are subsidised unlike the uk) Because they are used to a controlled warmer climate undercover, when they are planted outside they go into shock and some do die.They will need acclimatising first before planting. Cordylines are one of the popular lines bought from abroad.


Purple cordylines are not as hardy as the green ones in the uk. They are best grown in the warmer south.


Ignore this if you are US
Reply:Is the location they're planted similar to the climate where they originate? Was it too cold/hot?


Is it possible that you're over-watering? Not enough water? And did you remove at least one of the smaller plants to see what the roots looked like?


Could there be pests?


Often times the leaves can give you a good idea what's going on.


If you keep the receipt most nurseries will allow you to get a refund or replacement for a plant that died within a year. Contact them and see if they do this. If they do maybe you could take one of the plants that's starting to fade and they could diagnose the problem.