Question
I bought an indoor palm 3 weeks ago.  It was repotted by the nursery into a very large pot with some crotons at the edge of  the pot (covering the soil).  It is indoors with very bright light near a window.  I have already lost 2 full branches and the 3rd one is browning (starts from the very top of the tips moving down).  There is some new foliage coming too.  I water it once a week and hte soil isn't too dry in between.  It only has 3 branches left.  Its a gorgeous plant (or was when I bought it).....will it die.

Answer
Are we talking about the Croton plant -- Codiaeum variegatum?  The tender tropical plant with brightly colored leaves?

Overwatering is the biggest error people make with Crotons, especially when the pots are oversized -- the root system can't use the moisture in the pot fast enough, and it begins to rot.  Next thing you know, the plant is doa.  Terra Cotta pots that are not TOO BIG are best for Crotons -- if you have one.  Terra Cotta allows the roots to breathe; it is porous and very plant-friendly.

Palms are a different story.

If these are Palm leaves, symptoms point to cold damage or watering problems.  Palms do need to be fed carefully.  But you just bought this plant; my guess is was force-fed for months to get it into tip-top photogenic shape for sale.  For future reference, the University of Florida school of horticulture recommends that Palms be fed with a fertilizer that breaks down to 8-4-12 and is PACKED with MICRONUTRIENTS and Trace Elements (Boron etc).  Magnesium and Manganese especially.  Some Palms are extremely FICKLE and must be fed with TLC.

The mere shock of switching from a wonderful, heavenly Greenhouse environment to a dry, dark store shelf to a friendly home with bright light near the window is way too much for a plant to deal with.  Add to that the aforementioned force feeding and you can see how this plant could be miserable.  This happens all the time.  Let the soil dry out now that you have it re-potted in a large container.

The plant will take time to recover.  That means you have to be patient and don't fuss with it.  It's like a patient in the hospital.

You also must get the hang of watering this thing.  Let the soil dry out, and -- if this is a Palm -- let it stay dry for a day or so.  Reach under the pot to make sure you don't see a lot of moisture at the bottom.  If you do, get yourself a Terra Cotta Pot that is a size smaller than the one you have, and re-pot.  Yes, re-pot.

No fertilizer.  That's too much a slap in the face at this point.  If you have a few doses of the Plant treatment called Messenger, that would do the trick.  Otherwise, it helps to pray and light candles.  Stay occupied.  Hope for the best.  Leave it alone.  Keep me posted.