Tropicals & Tender Perennials: Dried areas in leaves, should I be concerned, 1 by dmwade

dmwade wrote:
I have a Passion Flower plant ‘Panama’ (Passiflora edulis) that is having areas of the leaves drying. See photos.
In general the plant looks healthy and I don't see any sign of bugs.
I live in the Phoenix area, zone 9b and it is planted in the ground against a west side wall . It is a new plant, planted in February 2015, after our "winter weather " passed. I am new to Passifloras in the ground, as I am new to Arizona. In Wisconsin I did have a large Passiflora that I grew in the house under lights, but have never seen this problem before. The plant is in full sun and is on a drip irrigation, so it is getting sufficient water.

Any ideas and should I be concerned.