Help! My leaves are going white and hard

[khorgor]

Hi everyone. I just recently bought a grevillea olivacea
I trimmed the roots made my cuts, mixed up the soil and dosed it with NPK fertiliser

Now the leaves and becoming white, hard and curling in on themselves
Have I over done the fertile or root cutting?

And suggestions much appreciated

[rowan]

Just guessing but I reckon you should have left the fertilising till it was established. Might be a gonner by the sound of it. If you put up some pics we might be able to give better advice.

[Pup]

Hi natives are sensitive to "P" as in phosphorus in fertilisers. A fertiliser with a "P" below 4.4 is good as in Yates fruit and flower.
It is also advisable not to fertilise, till the tree becomes re established after re-potting and root pruning.

I like Rowan feel this one may be a gonner.

Cheers Pup

[time8theuniverse]

I've killed some grevillea by being to rough with the roots, but the stress turned the leaves brown. I think it may have been the P that cause the problem, grevillea are very sensitive to phosphorus because they use microbes in there roots to generate usable phosphate in the poor soil they naturally grow in.

I hope your not too discouraged to try again if it turns out to be the case and it doesn't make it.

[khorgor]

Hi guys. Thanks alot for the feedback

I'll plant in natural soil out of pot tomorrow and see if I can save it. Luckily the saplings are only $3 or so

And yes I will keep trying. Good to find this out an try again