If the chunks of sponge are coarse enough that there's lots of air flow, it
will probably be OK, but my inclination would be to repot it.

--

Ray Barkalow - First Rays Orchids - www.firstrays.com
Plants, Supplies, Books, Artwork, and Lots of Free Info!

.. . . . . . . . . . .
"Geir Harris Hedemark" wrote in message
...
I bought a cymbidium a couple of weeks back. It hasn't died yet, and
it is "lightweight" after a week or so, which makes me want to water
it.

It has been potted in a mix with bits of sponge (the stuff cheap
mattresses are made from).

Won't this increase the likelihood of me ending up with rotten roots
immensely?

Geir