I am done with my water in the GH. It comes out orange, has other high mineral content (its well water) and makes my plants look bad. Are there any hose end filters that are not an arm and a leg to use?

Even the filter makers warn that you can't expect a small filter (as in 2.5" x 10") to treat more than a few gallons of water. For about $30 you can get a filter good for about 5,000 gallons at 2.5 gpm. But you should look around and talk to makers before you buy, because you obviously have a lot of mineral, and you would want to know how they say that affects the life of the filter.

https://www.amazon.com/s?k=iro...

Yeah I know....my overhead sprinkler system has those little Mickey Mouse plastic filter inserts to filter out stuff, they clog up in a week. I need something better.

Well, I'd consider that the dark color of the water suggests that the iron is insoluable ferric iron. Ferrous iron, the soluble ion, generally leaves water clear. So you can begin by assuming it's the ferric iron, which is essentially a sediment. So you can start with a sediment filter, which is pretty cheap, the common pleated filter cartridge.

It won't remove dissolved ferrous iron, so if you have that, the water can still stain things, the way it does sinks and toilets. But there may not be much ferrous in your water. If that's the case, you win with a sediment filter. It will also filter for dirt, rust, etc. but will not deal with other dissolved minerals. So heavy dissolved lime might still dry leaving spots. But that's another story, after you see if the cheaper approach works.

Maybe something like this:
https://www.amazon.com/dp/B0016A0JCC/

Cheap enough to try, and you should know pretty quickly if it works. Probably last around 2,000 gallons.

We have an 'Iron Curtain' filter on the water that goes to the house but not to the greenhouse

That one gets both kinds of iron. I oxidizes the ferrous iron to a precipitate, and the sediment filter catches it. An inexpensive hose filter won't do that.

I just want something that will improve it some. We never had this problem out here before Hurricane Irma. We got hammered by Irma here and it did something to the FL Aquifer in this specific area. There was some shift. People who never had iron problems before suddenly had them big time. My well is 215 feet deep, we have always had high dissolved minerals because the aquifer is limestone. But the Iron is new since Irma. I will try a couple of the sediment filters and see of they make any appreciable difference, thank you!