Passion Flower disease/deficiency
I have a common blue passion flower (Passiflora caerulea) growing indoors under lights for winter.
It is in an enclosure i built that has ample fluorescent lighting.
The plants leaves are exhibiting and odd coloring and patterning that is displayed in the attached image.
It seems that the yellow spotted (intervenial chlorisis?) pattern is more pronounced on the younger top leaves. But the yellow discoloration is still showing amongst leaves of different age.
I think there is no nitrogen deficiency since the yellowing is moderately more pronounced on the top leaves as opposed to bottom.
Can anyone give any advice as to what i ailing this plant?