• Leucocoprinus birnbaumii - commonly called the flowerpot mushroom.

While I do not feel qualified to offer a specific ID, there are a large number of saprophytic fungi that feed off of any decaying organic matter present in any potting soil. They are not at all uncommon, especially with soils that maybe overly moisture retentive or watered too frequently.

Some - but not all - species are edible. Do NOT eat unless you are 100% certain of the ID.

your media is breaking down.. and one of the things that breaks down media with wood in it is .. wait for it.. fungii ...

its has nothing to do with the plant .. and no impact on the plant ...

though respect chromas contributions on the forums... i simply would NOT eat a shroom based on an ID from a stranger on the WWW ... find a local expert if its worth your while.. perhaps you local county extension office can help you ... believe it or not. shroom hunters are not that rare ...

ken

in case its tasty, before I gank it.

==>> what does gank it mean?

Possibly 'gank' is a typo of 'yank'?

And yeah - do not eat. The potential for serious harm is not worth it.

The only brightly colored mushroom I know of that's safe to eat is chanterelles and that is definitely not one.

Not a typo, meant it in that I will rip that sucker out in such a manner as to joyously fling it away. :D Its moot now as I accidentally knocked into it before I took that picture and its deflated now. :/

Thanks everyone for all your info! I did positively ID it from googling the Latin name iochroma gave me, and looks like a sign that my last watering was a bit much. No worries, its getting to slowdown time anyway, and I do have a meter so I'm getting better at managing water.