I have a few plants outdoors in mixed shade, half shade and half full sunlight for each half of the day. I am not sure the strain, but in an attempt to keep spider mites and aphids off my plants, I sprayed the leaves with baking soda, and water solution. and also thought it was a good idea to add eggshells to my plants, to try to recycle.

Now I have one plant that looks like the yellowing is a nitrogen issue, and the other is wilting pretty bad. I dont have much experience with this, but was trying to grow organically and not adding any chemicals or what have you.

All the videos on youtube I have looked at talk about Indoor plants, so maybe the information doesnt apply here.

Would anyone tell me how to fix this...?