Hi .. I planted an orange pip about 15 yrs ago ....Still growing & loves the sun ..
Last summer had first flowers ... After Bees covered it ... now have small fruits forming !
The fruit if anything may not come to much as the original stock was unknown
My point is that i've found them very forgiving .., much light & keep scale insect @' bay with mild soap & a toothbrush ( cover the soil in pot from the cleaning solution ! ) I under water if anything!
Just seen Monts' video ... Sage advice as always