in my experience they don't like to be disturbed. every time i replant it takes it 6 months to recover. But while it was left alone for 3-4 years it did splendidly and offset like crazy.

However the older they get, the longer the trunks get and then they can sort of rot off at the base, while new off-shoots develop. So when i replant i throw away the old stems even though they still have leaves but they are weak. i tried cutting off the tops and rerooting them , but they rot invariably.

but in general they do like it moist and i grow in roughly 2:1:1 of AV mix(peaty)/perlite/bark on self-watering wicks. or just half AV mix half perlite (since i need a good wicking action with drainage)

Gee, I think they are one of the easiest plants to grow so it's puzzling why you are having trouble. I had a similar experience to Petrushka when dividing an overgrown plant. The one I kept pouted for months and I wondered if it would live. It did.

I wonder what you mean your "latest bark." I cannot remember what I repotted with, but probably some bagged potted plant mix, Miracle Gro or maybe EB Stone available here in CA. No bark involved.

I'm sure you are using a pot with draining hole and the plant gets bright light but not direct sun. If the plants are under a heat or a/c vent, they might not like it. They will begin to wilt and let you know when they are thirsty. I try not to wait for wilting before watering but not overwatering either.

When you get a new plant, do you repot in a better mix, removing as much of the grower's mix as possible?

I had a beautiful plant that my wife gave me in 2013. I bare rooted and repotted it a couple of months after it was given to me Into 5:1:1 and it did Awesome. I’d literally repot every year bareroot and all. Roots were healthy and Every year it would flower.

A couple of years ago, I got a variegated version from HD, and that‘s when it went down hill. I ended up losing the variegated version to stem rot after I repotted in 511. The old PL was lost this year due to rot

Also I get my bark from a landscape supply store by the truckload and always use pots with drainage holes.

well, i've got a variegated one :). it's called 'Domino' - it's the only one. may be it's more finicky then plain ones. try NOT to play with bare-roots ;) and 511 , may be it'll live!

I thought I lost two peace lilies years ago - no water, then over-watered, etc. Threw them on the compost heap. More grass clippings, brush, potting soil covered these two plants over the summer. The next spring I moved the compost heap at the request of my wife. I found a green leafy thing growing several inches deep so I carefully dug it up - yep, one of the peace lilies. A little more digging and I found the second one growing new leaves as well. I potted both up and have never repotted (why do this if they are doing fine?) These plants are 27 and 22 years old as they were funeral gifts for my grandmother and brother. Maybe too much doting on is killing them?

I have had one for at least 20 if not 30 years, started out as a little plant in a florist shop that was closing down. It has survived everything, drying right out while I was away and coming back, frying to a crisp in too much sun and coming back, and it is very easy to tell when it needs water as the whole plants flops and looks sad. The one I have may be going into the tub for a good soaking as I do find it is hard to keep it moist enough inside. It is flowering right now, I find when it is doing well I get at least 2 seasons of bloom. I am a bit of a less is more kind of person, and it has never gotten special soil, or even fed on a regular basis, it also hasn’t been repotted a lot, although I was wondering if I should divide it. The pot it is currently in is full side to side with plant. Maybe try a different place to buy one from?

Did you bareroot Karen?

I forget, but I must have as I wouldn't repot in to new mix while risking mixing in the old soil in w/ the new or on to clogged, congested roots. I need bare root to really see the roots & assess the plant's condition.