In your case, containers. because relocatable. Placements according to conditions, and according to plants' endurance. Provide make-shift shading /filtering as needed.

Any suggestions on the size of containers? I think I'm going to have to go buy a bunch :-/

For any given type of growing medium, larger container retains more moisture and longer than smaller. Which may or may not be desirable, depending both on plants' utilization and on their susceptibilty to root rot.

Plants whose roots remain restricted do not grow as large as plants whose roots grow unrestricted. Often I increase depth of medium, when it becomes necessary, by cutting bottom out of pot (plant and medium inside), and stacking it into pot of similar size that is less than full of medium. Sticks through the full depth stablize the upper pot. This method reduces the space otherwise occupied by wide pots.

Great information, thanks!

I did some research on my peppers, and from what I can find their average height will be:

Sweet Peppers - 2-6'

Aji Mango Stumpy - 5'

Purple Habanero - 5'

Unknown Scorpion (looks like a Trinidad Moruga) - 3'

Orange Habanero - 3'

Peach Scorpion - 1.5'

The sweet peppers were kind of a joke... I buy mini sweet peppers at the grocery store to make a pasta dish, and just for kicks I scraped the seeds out of them one time, let them dry, and planted them when I did the others just to see if they'd come up. I have no idea, though, whether these are true mini peppers or if they're modified bell peppers, so I'll find out when / if I see the fruits! LOL

Bell peppers are common in my area, and since I don't care THAT much about them then I put just put them in the ground...

For the hot peppers, though, I have a ton of nursery pots, but most of them are less than 1G :-/ I have a couple of containers that are monsters (like 1' deep by 3' in diameter), and I'm torn on whether to put a bunch of the same peppers in one pot together, or to go buy new ones and spread them out. Spreading them out would help ensure against pests killing them or too much / little sun hurting them, but it will also cost a lot more money, so...

The Aji Mango and Purple Habaneros are my biggest concern, I think. Apparently they can get over 5' tall!

https://thehippyseedcompany.com/product/aji-mango-stumpy/

If they all come up then that'll be 12 big containers that I need :-O The potting soil alone is going to become a major expense on this one.

@beesneeds, I have dappled shade aplenty :-D I cleaned out a large area on the Western side of my house over the winter, so I have a good spot that's shaded by the house until around 11am, and then I can either give them direct sun until around 3 or move them farther West and they'll get dappled sun the rest of the day.

In a 1'x3' container, I think you can do your Peach Scorpions, and probably 2-3 per container. Try the sweet peppers in that size container too- a lot of commercial cultivars are on shorter plants, so if yours don't throw sports it's likely yours will be shorter as well. Your 5' plants could also probably go into that size container, but I would limit it to 1 plant per container and make sure you got good supports.

Hey, I grew peppers in containers for years in NC near you (Charlotte area). If you go containers, here's what worked for me.

I used to use plastic "self watering" pots from big-box stores happily - 12" or 14" ones run < $15. But over time I learned the "self-watering" cheap pots are risky, particularly if you also buy cheap potting soil.

I switched to fabric 2 years ago and I strongly prefer them and HIGHLY recommend them. Even better if you put yours on the ground! Since they get some capillary action. But if you keep them on a deck, that works too (mine were on a balcony).

You can get a pack on Amazon for really cheap! Don't bother with the overpriced name brand, just go to Amazon or Ebay - they're all the same felt. You can get some with handles, and my favorite, ones with velcro sides so you can easily remove a plant if you change your mind.

Size: YMMV but I found 5 gallon is about right for most peppers. (This is a 14" or so pot). The only one of your varieties I grew was orange hab's and I found mine did well in a 5 gal.

5 gallons is actually a bit big for peppers, mine rarely seemed to use all that pot space when I cleaned my containers out.... but 3 gal is just a bit too small to deal with easily in our climate, so I default to 5 gal. I move to 8 gal for really big plants like Poblanos. I put Shishito's in an 8 gal last year but will probably go 5 gal this year.

For your big sweet peppers, I don't know if I have a good pot size rec. I never had luck with bells in containers. My container success maxed out at like salad pepper/Poblano/Shishito size. But on a balcony I also had less room and limited sunshine.

Hopefully any of that helps.

Oh my gosh, @K Marie, I had no idea those existed!! Thanks so much, you're gonna save me a LOT of money! I found these for $1.50 /each:

https://www.amazon.com/ACSTEP-Aeration-Thickened-Nonwoven-Handles/dp/B08QJJMQ78/

I currently have 42 sprouts (and waiting to see if 6 others sprout). I have a ton of nursery pots, but they're all way too small for this. I was worried that I'd have to buy the $15 ones!! Or let a lot of them die :-(

Any suggestions for good yet inexpensive potting soil? I usually use Miracle Grow, but it's $15 for a 50 quart bag! I think that would be enough for 2 1/2 pots, and it's hard to justify $300 in soil :-O The ground soil in my area is mostly red clay (what we call Carolina Clay), and I'm not sure that it would be healthy enough to use for any of these.

Did you read the comments in Amazon?

I did... I'm not too concerned with the thickness of the material, I probably won't reuse them annually or anything.

I read some concerns that they aren't really 5G, but that'll be easy to determine; it says that the dimensions are 12" diameter by 10" height, and that's 4.9G, so I'll just measure when I get it. If it's not then it's Prime with free returns so I can send it back :-)