I am wondering if anyone has a recommendation for easy to grow carnivorous companion plants to be with my orchids. And if so could you recommend a reputable supplier/grower? Presently I have one Droseara Capensis sharing space with my orchids out on the screen porch. Its doing its job since it is covered in fungus gnats but I rather keeping the gnat population down before its time for everything to come back indoors this fall. (I have enough wee beasties in my house) I purchased from a local greenhouse and it was in a bit of rough shape but is starting to bounce back. I also have a Sarracensia purpurea ssp. growing very happily outside in the yard but its not what I what I would consider a companion "house" plant culturally wise.

I really do not understand the question? I mean if you are looking for " companion plants" to grow near your orchids, you could try whatever you want.
If you are looking to grow a " companion plant" in the same pot as an orchid, that is not a good idea. So many carnivorous plants are freshwater bog plants that like their feet wet all of the time. Orchids do not tolerate wet feet.
So a little clarity on your part is needed please.

I grow some Nepenthes indoors, by the sink, and in standing distilled water. There are two main groups, the highland and lowland varieties. So depending on what type of orchid you are growing, try to read very well first the culture of that particular variety you will choose since you have to consider lighting requirements. The more access to light, the better to encourage leaf growth and eventually pitcher formation.


Pinguiculas are nice to grow too, when in carnivore mode it easily attracts fungus gnats too. They like bright light conditions, no direct sun. Depending on the season, they may go carnivorous mode or just grow similar to a succulent. I get their blooms during summer time.



California carnivores is a good source. It is driving distance here so I just go there if I need to get any. I thinky you can order online.

I think Carnivorous plants fall somewhat flat in the house over the Winter if you might think they keep bug populations under control. Also, quite a few simply go dormant in the Fall.
I kept last Winter a couple of Sarracenias in the greenhouse, together with a couple of small Phrags and my Phaiocalanthe Kryptonite, they were in a tray under my Vandas, where they were watered daily with rainwater. These particular Orchids are compatible with those carnivorous plants. But, I made sure they never sat in old stagnant water. And yes, a Drosera and a couple of Venus Fly Traps sat there too, they slowly but surely went to sleep, more or less....The nice thing was, the Sarracenia came well through the Winter and actually bloomed in the Spring. And the Phaiocalanthe liked the extra water.

I am looking for plants that would be grown near my orchids to help keep fungus gnats populations down. Ones that would tolerate similar conditions in a home environment as my orchids (Phals, Cattleyas, Oncidiums) that also wouldn't need a winter rest period like my Sarracensia purpurea ssp. or a Venus Flytrap requires. Both of those species require conditions that commercially available Orchids in my area wouldn't be able to tolerate (full sun, constant wet feet, acidic media, below 40 F winter rest period).

Sarracenias and VFT's need their winter rest.

Pinguiculas and Nepenthes do not go dormant. But make sure you use rainwater or distilled water. Though lately I notice my Pings do not mind our tap water. I have tested my Pings outdoors in our mild winter which goes down to the 30F range, and it endured well. Seems to grow nicely too since that is the time we get winter rains here. My Nepenthes has always stayed indoors by our sink, by a west facing window. Since my area is very dry, they like to be in standing distilled water.

If that is your purpose, to get rid of fungus gnats, you need to change your point of attack.
Lisa, you really need to figure out why you have so many fungus gnats in the first place.
They love these stinky, half rotted decomposing media and associated debris. I have been bothered by insects over the years but not by fungus gnats. I keep debris out of my pots, I keep the media fresh, I clean up plant debris from the entire growing area, no moss or algae on the side of my pots.
Good growing area conditions help your plants in so many ways. Just the installation of an oscillating fan can make a big improvement in the air quality and overall health of your plants.

Yellow sticky traps work well also. Something like this: https://www.gardensalive.com/p...

In my many years of growing plants, professionally and personally, I can assure you that it only takes bringing in one little gnat on a new plant which will promptly reproduce and drive you crazy for months eliminating them. It happens, don't beat yourself up.

Like Bill says, circulating the air around your plants will help, the plants will naturally begin drawing more moisture up from around the roots to counteract the effect of of the drier air on their leaves.

Lisa, I grow most of my orchids inside my pool cage (screened enclosure around my pool) and I have two fairly large Nepenthes (pitcher plants) also inside the cage. They do seem to help keep down the thrips that get in through the screening, and certainly are eating lots of no-see-ums for me.

I'm not sure where you'd order a Nepenthes from, since I got mine at Lowe's here a few years ago now. I'll ask around. Not a good time of year to be ordering plants online, though. Hot weather is very risky for shipping.

Their only requirement is regular water, and that water must be distilled or rain water, not tap water or well water because the enzymes in the pitchers that digest the bugs are killed by chlorine, or also by minerals in well water (found that out the hard way).

They're nice plants and fairly easy care. If I keep them warm on our few cold nights here, they keep growing slowly and putting on new pitchers all winter. Not really sure how they'd fare as indoor house plants for you, since their main source of nutrients is the bugs they consume, and if they took care of all the bugs in your house, you might have to go find some for them.