Was it planted properly? All root issues fixed? How much water? What is your USDA hardiness zone? I wouldn't be extremely worried, maybe just a little transplant shock.

Has box blight reached your area yet?

Are you in an area where boxwood decline (caused by any of several pathogenic fungi) or plant parasitic nematodes are prevalent? Call your local agricultural extension office and ask what the common issues with boxwood are in your vicinity.

These 6 were transplanted this spring. I'm in North Alabama, USDA Zone 7. Like I said, only 1 of 6 is having issues and they all get the same water/sun. In the past few days I've put them on a drip line thinking it may have been not enough water. From what I've read it didn't appear to be blight because the stems look healthy and the white spots look more like fading that specific spots/sores. One thought I had was if the lawn care company got overzealous and got weed/feed into the bed? I still find it strange its just one.

Did you plant them properly? I could see this being mild fertilizer burn or maybe root problems from a soil amendment.

some may disagree but here it is anyway: https://caldwellhg.blogspot.com/2016/08/planting-potted-stock-trees-shrubs.html

There are some exceptions, especially for larger specimens but that is the method I use to plant most trees and shrubs.

Drying out of roots or root rot (frequent in box).

I think I planted them properly, I moved them from another spot in the yard so they've been in my backyard soil for a good year.

I first thought it was too dry so I continued good watering with no improvement. If it is root rot what should I do?

though the plants might all look the same at planting ...... for some reason.. the roots in that one... were not the same ... its called.. the odds ... if bigboxstore.. return????

any chance a dog could be peeing on it.. or a kid stepped on it ... thats quite a small path???

those forms remind me of my pathmakers form.. but blown up ...

ken

Haha yes, they are the pathmakers form, just some leftover pieces we had. I'd really like to replace them with flagstone one day :). I bought these bareroot about 2 years ago and started to plant as a border hedge. After some died off this spring I transplanted the remaining to this new bed/walkway. The kid (5 year old) stepping on it is a possibility but I don't see physical damage.