Yellow needle tips , HELP

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Yellow needle tips , HELP

Postby Leighg » June 11th, 2018, 9:02 am

Hello

I was given this tree as a gift 1 month ago, it was sold as a black pine but I don’t think it is and I am now leaning towards a Scots pine.
It is a 2 needle pine.

When it arrived at my place the needles were a healthy green and over 1 or 2 weeks the tips of the needles all over the tree started to turn yellow and since then it has remained the same.

It is completely root bound and I can hardly see any soil in the pot as it has been neglected for a very long time.

Not sure why the needles apart from stress have remained yellow.

Does anyone have any clues or tips to getting it back to green health at this time of the year???????
Should I just wait till July and repot?
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Re: Yellow needle tips , HELP

Postby Akhi » June 11th, 2018, 1:48 pm

A picture would be a good starting point for getting valuable feedback or suggestions. It could well be a mugo pine yellow which turns to yellow in winter.


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Re: Yellow needle tips , HELP

Postby Leighg » June 11th, 2018, 2:48 pm

I can't seem to upload images because file is too big.
I don't post on here much so if someone could tell me how I can post some pics
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Re: Yellow needle tips , HELP

Postby Kevin » June 11th, 2018, 3:26 pm

Hello Leigh,

AusBonsai has a limit of 1MB per image, so we all must reduce our image's size before attaching to a thread.
A good all round file size for images is around 500KB.
A simple free app for resizing images is 'Image Resizer'. Once loaded onto your phone / computer it's as simple as right clicking on the image, select Image Resizer, then select a size around 800px x 600px.
On a Windows PC i generally use Paint. Either will work fine.

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Re: Yellow needle tips , HELP

Postby Leighg » June 11th, 2018, 3:49 pm

BBCA1F36-E748-4645-BB89-76DE33B48696.jpeg
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Re: Yellow needle tips , HELP

Postby Leighg » June 11th, 2018, 3:52 pm

BE057BF3-9F69-48FA-BBCC-2CC42E16C074.jpeg



Thanks Kevin !

Here’s a couple pictures of the pine.
Would love to know what species it is.
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Re: Yellow needle tips , HELP

Postby shibui » June 11th, 2018, 5:21 pm

Those short, close packed needles look a bit like Pinus mugho but I think there are some short needle varieties of both scots and black pine. A look at the bark may help differentiate. I would also like to look at the soil and roots to see what you mean by
It is completely root bound and I can hardly see any soil in the pot as it has been neglected for a very long time

My guess, with so little to go on, is that it is starving. What fertiliser regime have you had it on (what sort, how often)
Not enough water could also cause yellow needles. Plants that are very root bound can be extremely difficult to water properly. The water just will not penetrate into the centre of the root ball and even though you think you are watering well the tree stays a bit too dry.
Root problems can also cause yellowing of needles. If it has been too wet some roots may have rotted. If it will slip out of the pot easily you can check the colour of roots. It is nearly time for repotting so you can solve the root bound and any other root problems then.
Another possibility would be not enough sun. I think pines should probably be in as much sun as possible at this time of year in most places.

Lots of possibilities I know but without further info or investigation it is hard to eliminate any of these.
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Re: Yellow needle tips , HELP

Postby Matthew » June 11th, 2018, 5:49 pm

shibui wrote:Those short, close packed needles look a bit like Pinus mugho but I think there are some short needle varieties of both scots and black pine. A look at the bark may help differentiate. I would also like to look at the soil and roots to see what you mean by
It is completely root bound and I can hardly see any soil in the pot as it has been neglected for a very long time

My guess, with so little to go on, is that it is starving. What fertiliser regime have you had it on (what sort, how often)
Not enough water could also cause yellow needles. Plants that are very root bound can be extremely difficult to water properly. The water just will not penetrate into the centre of the root ball and even though you think you are watering well the tree stays a bit too dry.
Root problems can also cause yellowing of needles. If it has been too wet some roots may have rotted. If it will slip out of the pot easily you can check the colour of roots. It is nearly time for repotting so you can solve the root bound and any other root problems then.
Another possibility would be not enough sun. I think pines should probably be in as much sun as possible at this time of year in most places.

Lots of possibilities I know but without further info or investigation it is hard to eliminate any of these.


Neil it could be a varient. Ive got a black pine in the garden that has been propagated to have yellow needles. Now if it originally a healthy green colour before and now yellow id be concerned.
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Re: Yellow needle tips , HELP

Postby Akhi » June 11th, 2018, 6:22 pm

Leighg wrote:
BE057BF3-9F69-48FA-BBCC-2CC42E16C074.jpeg



Thanks Kevin !

Here’s a couple pictures of the pine.
Would love to know what species it is.

That looks exactly like the one in a pot in my backyard which I bought from bunnings four years ago as a mugo pine Amber gold and it turns yellow depending on the severity of the winter and then back to green. I wouldn’t be too concerned but then again that’s my only pine :-)


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