Fertilizer: yes, half strength holly tone this spring. I also fertilized the surrounding grass with weed and feed in mid-may. At first I thought it might be a fertilizer issue or possibly herbicide damage. drainage: yes, the site has good drainage. It's on top of a hill and I modified the planting area with Turface. I neglected to mention that above. i am zone 5a. Here are images of the seven plants.

There was an eighth bush that I paid about $20 for. Turned up its roots and died in under a month (duke). I wonder if this is a sun intensity issue. The one a bit closer to a tree gets a slightly more shade and is doing the best. But another in the most direct sun is also doing great (chandler, image 6)).

Weed-n-fed. How close to the blueberries.

I ask because the above stuff would affect blueberries.

weed n feed application was right up to the side of the bed but not near the plants. Also they're on a hill so runoff would not flow into the bed. I'm definitely open to the possibility that weed and feed is responsible, but if that's true, why would some bushes be doing great and others poorly? Maybe to reframe the question: if they are alive, will they put on new leaves this season, or will I have to wait until next spring to figure out if they need to be replaced?

I think is a combination of too much water and the weed and feed stuff, some cultivars are more tolerant of wetter sites than others ,still they're not immune to root rot ,in zone 5b I would suspect that watering everyday would be a tad too much. I am not sure if the the first three will survive , however the other look healthy enough. Maybe you want to hand pull all the weeds around your bushes too.

I would second the idea of weeding farther around your bushes - the surrounding plants might be competing with the root growth of your blueberries.

I pruned back the first three hard. I will just have to see if they put out any new growth this season.

Update: yep, they were dead. I think I just shocked them by transplanting. The bed is now doing great with more mulch...and new blueberries. Thanks all