Sam, green flowers on Peace Lily's are normal..Some ppl say it's the plant's age, which may be the reason it happens.. So it's nothing to fret over.. But two things you said trouble me.."I water once a week," and "I had to repot in a bigger pot." Water when plants needs watering..there shouldn't be a certain day or time..If you water when the soil is wet, and continue doing it, eventually roots won't be able to absorb water.. Now about the bigger pot..PL's flower best when planted in a tight-fitting pot. If the pot is large, (too large) and you tend to overwater, you'll have nothing but problems..How much larger is the new pot opposed to the old? Toni

Sorry to hear that your mama passed away. I can understand why the plants mean a lot to you. The good news is that I do think these plants can be saved. They don't look like they are imminently going to die. A couple of questions that might help to better figure out how to improve them: Do you let the water drain out of the pots when you water them? How much light do they get? Are they near a window? Which way does the window face? This post was edited by summersunshine on Mon, Mar 31, 14 at 1:07

Toni gave you some excellent advice!I think she has one that's also as old as mine.16-17 yrs right Toni? Most plants like to be snug in their pots with an inch to spare between the root-ball and inside of the pot, that way, it's not over-potted with unused excess soil that can stay too wet, or not get enough water to all the roots causing many problems. If your plant was in a 6" (what you said in first post) or an 8" pot, moving it to a 12" pot is way too big. Go up just one size larger and only when you absolutely need to, like if the pot is (root-bound) Pot being more full of roots than soil and can no longer hold water, instead, water runs straight through and plant wilts again in matter of just a couple days. If your peace lily will fit back into the 6" or 8" which ever has an inch to spare, I'd move it back and get rid of any of extra soil and add a handful or so of Perlite (siliceous volcanic rock) so there is an almost even distribution. Don't feed! Plants that are not doing well should NOT be fertilized at all, only healthy growing ones will benefit and even then it should be used sparingly and half or less strength of what the directions say. A bag of "Perlite" can be found at places like Walmart, Lowe's, or Home Depot, most places that sell bagged houseplant soil. It helps with drainage because many bag soils are heavy and can smother the roots. Perlite will make it more airy. Peace lilies like semi moist soil, so when the top inch starts to feel "almost" dry, it's time to water. Water it thoroughly all around the top of the soil until it comes out the bottom. Spill out any excess in the saucer afterwords so the pots not sitting in water keeping the soil soggy wet for a week. Keep it indoors if you were putting it outside before. Give it bright 'indirect" light and/or dapple sun but not direct hot afternoon sun or the leaves will wilt and burn. You can also grow this plant in just plain water. Billy Rae

I would plant it back in a pot. If you have a slightly smaller pot that would be great. I do find that Peace Lilly appreciate having their roots in a properly moistened, well drained, nurturing mix with perlite and sand added. It also like to be watered thoroughly with each every watering. Once these conditions are maintained plants grow more abundantly. Hope this helps. Ankrara's Hobby Corner