I have 2 wisteria vines, about 3 feet apart and grass growing along the side. The grass gets watered 3 times a week and the plants get watered at the same time. For some reason one of my Wisteria plant is always growing yellow color leaves,and some leaves look burned. My plants bloom beautifull, but after the leaves start growing yellow. Your help is appreciated.
|Overwatering can cause yellowing leaves, as can salt burn (from lawn fertilizer). The fact that only one of your plants is exhibiting these symptoms indicates that the drainage tends to run toward the affected plant. I don't know that there's much you can do about this other than to try redirecting the sprinklers or not fertilizing that part of the lawn.
Wish I had other suggestions!