I was informed that a Phalaenopsis orchid is not a good choice for potting with a bromeliad, but I still have my doubts. I know the bromeliad's roots should not be wet, but the "soil" for both seems compatible. Has anyone tried potting a bromeliad with something else? These will be house plants, in my office.

The Bromeliad will make pups if it is happy, and crowd the Phal eventually. The Phal roots are thick and ropy, the Brom thin and wiry.
I haven't done this, I generally avoid mixing plants as it seems one always does better and they don't stay in balance. But who knows? Good luck and let us know, if no one answers specifically.

You may know this, but they say, do not let water puddle in the crown of the Phal, they way you do leave water in cups of the Brom.

Tillandsia Bromeliads will work with the Phalaenopsis if you will be growing the orchid in bark only. Other type of Bromeliads can work but in the long run the Bromeliads will overtake the Orchid in time. Another idea is nix the pot and to mount your Orchid and Bromeliad on driftwood or even a old aged piece of wood for a attractive display piece in your office.
I will get you a photo of my Tillandsias and Phalaenopsis growing together when it stops raining.

Here is a photo of the aforementioned combo growing happily outside.

I won't combine Phals and Bromeliads either. Phals thicker roots loves more air flow around them, likes to dry out much faster too. Both plants will have very wide leaves so it will look way too crowded as well.

Although both will enjoy shady growing areas, still it is much better to grow the orchid separate from the bromeliad.
If you really have a good growing area where the roots of both plants can happily spread about, then maybe you can consider growing them together but if it will be just indoors in a tight container space, it will not be conducive for it.

Also make sure if you do intend to combine those two plants, make sure you are combining it with an epiphytic bromeliad and not a terrestrial bromeliad.

Bromeliads are best grow with other similar Bromeliads. Orchids are best grown by themselves. The watering requirements of both groups are so varied from everything else you might plant with them that you are just asking for trouble.

sallyg said: You may know this, but they say, do not let water puddle in the crown of the Phal, they way you do leave water in cups of the Brom.

THANKS FOR THIS, NO ONE HAD MENTIONED THIS. I decided that in my desert climate, I will need to soak and drain the orchids weekly. since I won't have time to water them by misting the plants, I will pot them separately. My idea might work if they were mounted to some cool driftwood. I have never had these two plants, and I thank you for your input!
Laura

Welcome

😀

Good luck 🍀

Mindi

Bromeliaceae is such a big and diverse family, with terrestrial plants & epiphytes. Generalizations could cause more harm than help. If you are not sure which Broms you have, somebody should recognize them if you are able to share a few pics here or in ID section.

Chances are yours don't happen to be Neoregelia, but if they do happen to be, they get along well with Aloe vera: