I've got 4 varieties of pepper this year. All are doing well except for my
New Mexico Big Jim. The leaves are a pale green. The other peppers are
much greener. The pictures I've seen of these peppers show emerald green
leaves. All the plants get the same treatment. They get a half dose of
Miracle Grow 10-52-10 every week. Perhaps some bone meal? Do the NMBJs
possibly need more nutrients than the others?

I think you need to do special care for these papers in conservatories and orangeries. Because some of seed need special care.