I have done everything to help this juniper!

bonsaimiki

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See this video for a basic idea of what's going on.
[video]https://www.dropbox.com/s/y15ou8z4stigziw/Video%20May%2026%2C%206%2011%2054%20PM.mov[/video]

Detailed explanation:

Hello, everyone. So I've had this Green Mound Juniper bonsai tree for about a little less than a year now. It was doing fine during the summer (when I first got it) and winter, but then I noticed in the spring some of the leaves were turning yellow.

First though, I'll talk about its winter care (in case that might be the cause of what is to follow). Since I live in Zone 6, it got a good winter for dormancy. Though it was a little longer and colder than normal, it wasn't anything too serious (I don't think). Whenever it did freeze or got too much snow on it, I immediately took it inside until it recovered. I did not mist its leaves since the water might have froze over them. I also wired it over the winter to change the angle of its trunk. I seemed to be doing pretty good since all the while it had its leaves a dark green color.

Once spring started up in late March, I noticed the roots were taking over its tiny pot (which was only about 4 inches). Since it was about 3 years old at this point and spring had arrived (good time to repot it), I decided to buy a new 10.5 inch pot online. Note: I didn't realize just how big a 10.5 inch pot was until I got it, but I figured it would still be okay.

When I transplanted it, I changed the soil to akadama mixed with a little bit of the old potting soil it came with (which was more like houseplant soil with bits of gravel). I did not remove any of the roots since it was going into a bigger pot, however, I did transplant it outside and I'm told that UV rays can harm the roots.

One other detail I'd like to mention is that I used the material from an old window screen for the mesh to cover up the drainage hole and keep the akadama in.

Anyway, after I got the tree settled into the pot, I watered the akadama thoroughly until I saw water dripping from the drainage hole. I then left it on my back porch where it gets a healthy amount of sun in the morning and early afternoon (which seemed to do fine for it all summer and winter). I checked on it everyday and watered it when the soil became dry (which took a couple days after the initial watering). I did not fertilize until about a week or two after I transplanted it.

It appeared to be improving for awhile, but then one day I noticed webbing all over the tree and patches of yellow. I figured it was spider mites so I made a do-it-yourself insecticide. It was 1 part 70% rubbing alcohol, 3 parts water, and a drop of Canola oil (to help it stick to the leaves). I then sprayed the leaves down every other day or so.

While this certainly took care of the spider mites, it did not improve the yellowing. Distraught, I thought it might have a vitamin deficiency and began supplementing it with water mixed with a few granules of Epsom salt. That still didn't work.

So now it's been a month and as you can see from the video it is looking pretty bad. There are some parts where it remains green, but not much. The other day I trimmed off some of the branches to maybe give the roots a break. I also scrapped the bark and found it to be white underneath, so I'm not sure what that means.

In general, I keep it watered with a spray bottle. Since I do not just dump the water on the soil, it takes longer for the water to reach the roots (so I have to water more often than most, I think). I use a chopstick or dig my finger into the soil to check if it's damp. I fertilize it using a general houseplant one (it had the closest to the 10-10-10 ratio). That's all though.

I would hope I can still save this tree, but if not, hopefully I can learn something from this for future bonsai. I hope I provided enough details.

Thanks in advance for any advice!
 
I hate to tell you but your tree is dead. In your video, you say that you decided to transplant it after the tree began to yellow but in your post it seems like the tree was doing fine until some time after you repotted it.

If it was yellowing before the repot, I'm guessing that it was killed this winter. Junipers take a while to tell you because they can hold their color for some time. I'm guess what actually killed it, based on your description, was bringing it in and out throughout the winter. Most trees do not like multiple changes to environment in a relatively short period of time.

Junipers should be left outside at all times. They require a dormancy period. You may need to take some measures to protect them. I live in Michigan which is a 5b zone and I typically place them on the ground, mulch around them with pine needles, and surround them with burlap to act as a wind screen. All of my junipers pulled through and are looking happy and healthy.

If it started turning yellow after the repot, it's hard to say. Too much sun, spider mites, already stressed from winter, combinations of all of the above.

Unfortunately, this is the price we pay for learning. I have killed slightly fewer than the amount of trees I currently own. That being said, my success rate is increasing exponentially and my death rate is few and far between.

On a more positive note, you can probably replace this tree at a box store for $7-12 and give it another shot.

Best!
 
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If it was yellowing before the repot, I'm guessing that it was killed this winter. Junipers take a while to tell you because they can hold their color for some time. I'm guess what actually killed it, based on your description, was bringing it in and out throughout the winter. Most trees do not like multiple changes to environment in a relatively short period of time.

Junipers should be left outside at all times. They require a dormancy period. You may need to take some measures to protect them. I live in Michigan which is a 5b zone and I typically place them on the ground, mulch around them with pine needles, and surround them with burlap to act as a wind screen. All of my junipers pulled through and are looking happy and healthy.

If it started turning yellow after the repot, it's hard to say. Too much sun, spider mites, already stressed from winter, combinations of all of the above.

Unfortunately, this is the price we pay for learning. I have killed slightly fewer than the amount of trees I currently own. That being said, my success rate is increasing exponentially and my death rate is few and far between.

On a more positive note, you can probably replace this tree at a box store for $7-12 and give it another shot.

Best!

Thank you so much for the detailed explanation! I brought it inside to prevent it from freezing, but I guess next time I should take more precautions outside.

Yeah, sorry to sound confusing. It technically started turning yellow before the transplant, but it wasn't that bad. It had a few patches of yellow, nothing more. So it was something that signaled a potential problem to me and I thought there was still time to save it. Hence why I thought it was all okay before the transplant. After the transplant, it went downhill fast.

Too bad the tree had to die though. I wonder how I'll explain to my mother... Well, her gift did get me interested in bonsai, so I guess I can look at it that way.

I actually just found out I live minutes from a really nice bonsai nursery (or at least that's what people are saying online). I think I'll stop by for a visit.
 
The first death is always hard to stomach. As some has on their signature here, "Dead trees is the tuition we pay for learning bonsai." Just a heads up too. I wouldn't, in the future, repot a weak tree unless you know for sure that the reason for the trees weakness is an issue with the roots or the soil. Repotting is always stressful to a tree and putting an already week tree through more stress is very hard on it.

Best of luck and don't give up. The process and end product is worth the set-backs.
 
sorry about your juniper.
I watched your video and read your post and it is great that you were researching and trying to problem solve to find a solution for your plant.
Keep growing and learning and enjoy the process. It seems that this set back will not stop you from continuing your bonsai journey. So get back in the ring and put it down to experience.
You will experience many more highs than lows from bonsai, but you may have to endure a few lows before you get to the highs...they will come though. It is just part of the learning process.
Best of luck.
 
The first death is always hard to stomach. As some has on their signature here, "Dead trees is the tuition we pay for learning bonsai." Just a heads up too. I wouldn't, in the future, repot a weak tree unless you know for sure that the reason for the trees weakness is an issue with the roots or the soil. Repotting is always stressful to a tree and putting an already week tree through more stress is very hard on it.

Best of luck and don't give up. The process and end product is worth the set-backs.

Yeah, my plants are like pets to me, so it's tough to see one die...

Is there any way to tell if it is an issue with the roots or soil? I heard about that, but I didn't see any other possible sources to the yellowing leaves. Thank you for the support!


sorry about your juniper.
I watched your video and read your post and it is great that you were researching and trying to problem solve to find a solution for your plant.
Keep growing and learning and enjoy the process. It seems that this set back will not stop you from continuing your bonsai journey. So get back in the ring and put it down to experience.
You will experience many more highs than lows from bonsai, but you may have to endure a few lows before you get to the highs...they will come though. It is just part of the learning process.
Best of luck.

Thank you for the encouragement~! Bonsai is a really intriguing art form. Plus, the tiny trees are absolutely adorable. I will be sure to visit this bonsai nursery that is apparently nearby. Not only do they sell trees, but they also have classes taught by experienced bonsai enthusiasts. So hopefully they can teach me a thing or two.
 
Your not alone I've killed 3 dwarf junipers and maybe another. They looked green with very little yellow in early spring when I repotted. Then weeks after they declined turning yellow, new growth turned yellow and brittle. I am upset over this. So I'm thinking it could be one of these things. Harsh winter in NYC, full sun after repot, not anchoring the plant down to the pot. So I bought a real nice Shimpaku and a dozen juniors. What draws me to this hobby is the beautiful tree you can create.
 
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Yeah, my plants are like pets to me, so it's tough to see one die...

Is there any way to tell if it is an issue with the roots or soil? I heard about that, but I didn't see any other possible sources to the yellowing leaves. Thank you for the support!

You could dig it out of the soil and see if you can tell. Often you can tell that the roots are soggy or rotted but not always. Like I said before, my guess is that the shock of extreme temperature changes repeatedly is what actually killed your tree.


Thank you for the encouragement~! Bonsai is a really intriguing art form. Plus, the tiny trees are absolutely adorable. I will be sure to visit this bonsai nursery that is apparently nearby. Not only do they sell trees, but they also have classes taught by experienced bonsai enthusiasts. So hopefully they can teach me a thing or two.

Learning in person with someone who is successfully cultivating bonsai in your area is absolutely the best way to do it. They will be able to give you tips on watering, training, soil mix, time of repot, winter protection, etc.

Again best of luck!
 
I agree the culprit was probably the moving it in and out during the winter. Put it in a safe place and leave it there for the whole time. You seem to have some knowledge of bonsai but I think all the remedies may have also added to the stress. Go get another tree and start over. I sense your passion for bonsai in your post.
 
You could dig it out of the soil and see if you can tell. Often you can tell that the roots are soggy or rotted but not always. Like I said before, my guess is that the shock of extreme temperature changes repeatedly is what actually killed your tree.

Yeah, when I repotted the roots looked fine. They had a nice, earthy smell to them and weren't soggy.

Learning in person with someone who is successfully cultivating bonsai in your area is absolutely the best way to do it. They will be able to give you tips on watering, training, soil mix, time of repot, winter protection, etc.

Agreed! That is why I am glad I live so close by.

I agree the culprit was probably the moving it in and out during the winter. Put it in a safe place and leave it there for the whole time. You seem to have some knowledge of bonsai but I think all the remedies may have also added to the stress. Go get another tree and start over. I sense your passion for bonsai in your post.

It was hard to know whether I should just let it go and wait it out, or do something about the yellowing. Thank you for the advice! :3
 
Detailed explanation:

First though, I'll talk about its winter care (in case that might be the cause of what is to follow). Since I live in Zone 6, it got a good winter for dormancy. Though it was a little longer and colder than normal, it wasn't anything too serious (I don't think). Whenever it did freeze or got too much snow on it, I immediately took it inside until it recovered. I did not mist its leaves since the water might have froze over them.

A sheltered place that might keep off snow pack probably would not have hurt your Juni, thawing it (more than once) by bringing it indoors was probably enough to break dormancy, and the tree expired with a subsequent chilling.
 
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