First pic certainly looks like a pepper/chilli, but until fruits form, no idea which one it could be. Maybe the boffins at the Pepper Forum would have some idea...try posting that pic there.

Thank you NHBabs! I will now look for how to care for them. And shaxhome, I did suspect that. Thank you for directing me where to ask.

the begonia probably needs a lot more water ...

the jade plant looks pretty happy as it is.. but i would never allow that huge plant.. in the tiny pot.. in the sun ... the pot is simply too small and would heat up too much ... personally i would not transplant or repot it ...

the jade is rather easy to propagate if you want more plants ...

the jade is also a very common houseplant up north ... and you might learn a lot about it in the houseplant forum ... since its in a pot ....

ken

Yes, your Jade plant is very beautiful Victoria, and looks strong and healthy. If I were you I would ask the people you got it from how to care for it. They evidently did it right.

If you want another plant then "Snip the leaf from the plant. The next step in propagating jade plants from leaves is to lay the jade leaf onto a potting mixture of half vermiculite or perlite and half soil. Water the potting mixture once after you lay the jade leaf down and water sparingly until the leaf puts out roots." https://www.gardeningknowhow.com/houseplants/jade-plant/propagating-jade-plants.htm

Ken, I see. It certainly needs more space, but it's actually in the shade. That's the odd part, windberry. The person that gifted me the jade always had it in the shade with rare sunlight, not knowing how to care for the plant. I now realize it needs more, but I'm curious as to why it is so vivid and happy when it's never received much light.

I would not change anything and keep caring for the plant exactly as the previous owner did since, evidently, it worked very well. Ken said, too "personally i would not transplant or repot it".

"More" rarely means "better".

If you want to experiment, grow another plant from a leaf or stem cutting (it is easy) and see how it works for you.

The Begonia looks very much like 'Irene Nuss', which is a common plant in the Southern California including San Diego area. Regular fertilizer would help. When happy it can get 5' tall and very bushy.

Jades grow fine in bright shade. Tijuana is a fairly hot area so just a few hours of early morning sun at the very most.