It looks to me like it's just the old needles yellowing. as long as the new needles look healthy you should be ok. If the base of the needles look yellowish it's a sign of overwatering typically.Hello guys.
Just curious should i be worried on this JBP?
Is this needlecast that i need to treat?
Thanks
Chris
Also It's important to note that when you do change the soil mix, don't bareroot the tree. Do a half bareroot repot and then in 2-3 years bareroot the other half so you're changing the soil over a period of time not all at onceIt looks to me like it's just the old needles yellowing. as long as the new needles look healthy you should be ok. If the base of the needles look yellowish it's a sign of overwatering typically.
It does look like your soil is an organic soil mix. I would get it out of that ASAP as it will cause the rootball to stay too wet and lead to overwatering/fungal issues. I use Aoki blend soil for my JBPs, but a 1:1:1 mix of akadama , lava, and pumice would work.
Getting your tree in the right soil mix is the first step to ensuring your bonsai is healthy.
OHHH when i bought this tree, the soil is SOOOO DRY.It looks to me like it's just the old needles yellowing. as long as the new needles look healthy you should be ok. If the base of the needles look yellowish it's a sign of overwatering typically.
It does look like your soil is an organic soil mix. I would get it out of that ASAP as it will cause the rootball to stay too wet and lead to overwatering/fungal issues. I use Aoki blend soil for my JBPs, but a 1:1:1 mix of akadama , lava, and pumice would work.
Getting your tree in the right soil mix is the first step to ensuring your bonsai is healthy.
It's a nice tree, I love the Nebari and the bark. Do you know roughly how old it is?OHHH when i bought this tree, the soil is SOOOO DRY.
so i watered it right away once i got home.
maybe its underwatering.
Thanks for your advice, I will use, 1:1:1 of akadama, pumice and lava for this.
thanks
Chris
Yes, that's a great example of how to go about the repotting. You'll find the roots are really dense and that they break away in clumps. I'd suggest aiming for a repotting like in the article, and if possible, loosen up the remainder of the root ball with a screwdriver or something similar to help with drainage.
Also, your soil is terrible! You need to transition to inorganic soil. It looks to be too wet.
Black roots on a JBP are usually dead roots, or rotted roots. The growing Roots are white. Cut off the black roots when repotting.I repot this today. Removed the branches that doesnt need.
I notice on the roots that its only wet on the sides and in the middle its super dry..
Also the roots looks black. Is that normal?
(Sorry didnt took pictures)
What does a healthy roots of JBP look?
Black roots on a JBP are usually dead roots, or rotted roots. The growing Roots are white. Cut off the black roots when repotting.
Is this from house of bonsai? I ask because it looks like its planted in mud. I have a jbp from them, I wish I knew to change that soil out sooner, my tree really suffered.
Thanks for this i will definitely take my time tonight reading his blogJonas Dupuich told me that people over watering pine is the trees biggest downfall. 50-70 dry then water. I've went and suck a chopstick in the mix...to monitor the soil. He has a Guage as to moisture level under the pot. But at this time my plastic pot its in...is in a ceramic pot to help it not tip over. So that isn't a judge for me with the main pot not touch the bench.
Signs of overwatering black pine bonsai - Bonsai Tonight
Otherwise healthy black pine bonsai foliage can turn yellow when overwatered. How to distinguish overwatered pines from anemic pines.bonsaitonight.com
This one here...talks about signs under the pot.
Watering conifers - Bonsai Tonight
I've seen signs, recently, that some of trees in my garden are staying too wet. What does this look like? On pines I might see yellow at the base of thebonsaitonight.com
Jonas said he's been really stressing pine don't like wet feet. He has touched a lot in his blogs on the subject because its a problem he sees quite often.
His blog maybe of benefit to you.. Lots of talk on pines.. Feel free to spend time there as well..
Welcome...good solid vault information found there.Thanks for this i will definitely take my time tonight reading his blog