Yellowish sickly Nandina

I planted three dwarf nandinas about three weeks ago. Two seem to be a nice healthy shade of green, but one is significantly lighter - yellowish. The three shrubs all appeared to be healthy when I planted them. They are within a couple of feet of each other. Before planting them, I had already amended the soil with compost, and planttone. Since noticing the color, I have given them some alfalfa tea, in the hopes that this would help them to green up.

I have also tried looking for insects on the yellow nandina, but didn't see anything. The leaves don't appear to be wilting, and all three are watered regularly. I am stumped as to why it look like this. I would like to take action as soon as possible, because I don't want to lose this shrub.

This is the sickly nandina.

Here is a picture of the three nandinas. You can see that there is a difference in color.

The one to the left is the one that I am concerned about.

This nandina is continuing to look worse. Can anyone offer any advice?

Can you post a closer up pic of the leaves? And maybe a new shot of the plant since it's looking worse? I can't see anything really obvious in your pictures here to say what's wrong.

I'll take another picture tomorrow.

pennefeather,

Check and see if you might have planted the bad one too deep. Even a couple of inches of extra depth can destroy a plant of any kind.

Dig around the base and "feel' to see where the original surface of the affected plant might have been. Then, pull it up and re-plant it so it is at the right depth.

Just one of many observations. It might help. It might not......

Gita

It took me a while to take some additional pictures. I think that my camera has a hard time focussing when it is close up. This is the nandina that I was concerned about. The other two are showing the same initial signs.

Close up view. I've taken over 20 shots, but most aren't clear. Hopefully, you can see that the color is wrong.

They started out yellowish, and now some of the leave tips are browning.

This is a picture of one of the previously unaffected nandinas. It too is starting to have yellowing. I am hoping to stop this process before it become like the first one.

Since I have never grown these, I am stumped. I thought it might be a mineral deficiency, but I have tried adding addditional alfalfa tea to increase the nitrogen to no avail. As far as I can tell, there isn't an insect on the bushes. They are small one or two gallon shrubs. Could it be a fungal disease?

Any additional insight would be appreciated.

After doing some research, I think it might be iron chlorosis.

yeah try throwing some ironite on the yellowish one to see if it greens up

I added some iron a couple of days ago. Let's see what happens.

Quick update. The leaves are definitely greener. All of the yellow sections are now light green, and hopefully will be getting darker. It has only been just over a week since I added the iron. I think that an iron deficiency was the problem.