Is it leaf burn, too much water, or a lack of feeding? My Asahi zuru is displaying browning on its mottled leaves, which appears to radiate from the leaf center. I’m repositioning it into full shade to see if it will help banish what I suspect is leaf burn. Variegated japanese maples are supposedly sensitive to the heat than most cultivars, so I am hoping this is the case here. Pulling it into the patio shade will also distance itself from the water sprinkler, though I seriously doubt this is a case of overwatering. I haven’t yet fed this maple since it I got it…perhaps its time to research its diet. In any case, I’ve also had to prune a topmost branch since it looked and felt dried out. I hope this isn’t the beginning of the end…