Crown Rot: Possible to save old Phalaenopsis?
 

Hey everyone,

Been a long time! So I've had this phalaenopsis for nearly two decades and it recently fell into quick decline. I believe I broke some roots by the crown during my last repot and some dried out while I was away from home, which led to crown rot. All of the roots are gone and all that remains is a single leaf. There is some black at the bottom and I've applied some peroxide, but I'm wondering if sphag and bag can save this plant or is it just time to say goodbye?

That looks like a goner to me. Sorry.

That's more along the lines of "collar" rot than crown rot.

Crown rot is from the center down and outward. The newest emerging leaves die. It's usually caused by water in the crown plus temperatures too high or too low.

Collar rot starts at the base of the oldest leaf and the stem. It is usually triggered by high temperatures plus one of either high humidity, or the top of the medium staying very wet.

If a Phal. dies of lack of water it can sometimes look like that, too. But that can take weeks.

Oh wow, I'd never heard of collar rot before. I got through crown rot some years ago so I was slightly optimistic, but I guess it was just time. We had a good run.