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What is happening to my magnolia tree?

Posted on 4/24/25 at 9:25 pm
Posted by Cage Fighter Trainee
Member since Aug 2024
137 posts
Posted on 4/24/25 at 9:25 pm
I have a 25 yr. old southern magnolia in my backyard that has recently been losing all of its leaves and a good portion of them are yellow. Any ideas as to why? I broke the tip of a small branch today and it's still green inside, will the tree come back?

Posted by CatfishJohn
Member since Jun 2020
17156 posts
Posted on 4/24/25 at 9:49 pm to
Maybe over watering?

Can turn leaves yellow and they lose their healthy look.
Posted by Cage Fighter Trainee
Member since Aug 2024
137 posts
Posted on 4/24/25 at 10:04 pm to
I'm hoping that's it. I've got some new sod and runners near the base of the tree that I've been watering a good bit. I didn't think I was watering it that much but I'll back off for now and see what happens. Thanks
Posted by CatfishJohn
Member since Jun 2020
17156 posts
Posted on 4/24/25 at 10:22 pm to
Throw a lot of hollytone around the drip line just to make sure it has nutrients
Posted by Cage Fighter Trainee
Member since Aug 2024
137 posts
Posted on 4/24/25 at 10:42 pm to
I'll try that, thanks for the suggestion
Posted by Spankum
Miss-sippi
Member since Jan 2007
58769 posts
Posted on 4/24/25 at 11:52 pm to
A lot of magnolia trees in Mississippi are still dying from the drought a couple of years ago. If I had that tree, I would probably call a professional, like a county agent from the extension office.
Posted by lsujunky
Down By The River
Member since Jun 2011
2518 posts
Posted on 4/25/25 at 4:18 am to
The ones around here are doing the samething, some are losing more leaves than others. I was told by a tree guy that it was because they have been taking a beating with the drought and then last year with the hurricane and snow. All mine are blooming and have new shoots on the end of the branches but look bare. I have a heavy clay yard which magnolias do not like. So I took a soil sample to SiteOne and I’m waiting on the results to see what we can do to help them out. I know they like an acidic soil so CatfishJohn is on the right track with the Hollytone fertilizer.
Posted by Grassy1
Member since Oct 2009
7330 posts
Posted on 4/25/25 at 8:10 am to
I'm no tree expert, but the general rule of thumb for plants is: if the furtherest out leaves are yellowing = lack of water. If the the near ones are yellowing, too much water.


I guess if they're spread evenly, you'll need more expertise.
This post was edited on 4/25/25 at 8:11 am
Posted by sosaysmorvant
River Parishes, LA
Member since Feb 2008
1415 posts
Posted on 4/25/25 at 8:29 am to
Check for scale. Two of my little gems were infested and I had to treat with imidocloprid to get them back to health.
Posted by Cage Fighter Trainee
Member since Aug 2024
137 posts
Posted on 4/25/25 at 9:42 am to
I emailed the pics to the local extension office. I'll update when/if he replies.

I'm going to pick up some Hollytone today
Posted by Cage Fighter Trainee
Member since Aug 2024
137 posts
Posted on 4/25/25 at 9:45 am to
I didn't see any anything obvious on the tree trunk or branches that would be a cause for concern. I Googled pictures of scale and didn't see that on the tree. Glad I can rule that out, thanks.
Posted by CatfishJohn
Member since Jun 2020
17156 posts
Posted on 4/25/25 at 11:36 am to
With an established magnolia it's really hard to over fertilize with hollytone. It's slow release and organic. I have 6 established magnolias and use three bags per tree twice a year. So 36 bags They respond really well to it after brutal Tennessee winters with our hard freezes which turns into boggy soil after the melt and early Spring/late winter rains.

It can hurt the grass along the drip line a bit, but I don't have much because of the trees themselves.
Posted by lsujunky
Down By The River
Member since Jun 2011
2518 posts
Posted on 4/25/25 at 7:15 pm to
I wonder if it could be the new sod if you laid sod over the root that are running on top of the ground is it chocking them. Kind of acting like when adding dirt over the root system. If you add to much it could have adverse effect.
Posted by MikeD
Baton Rouge
Member since Jan 2004
7901 posts
Posted on 4/25/25 at 7:39 pm to
I had 3 magnolia trees in my yard die last summer from the drought. After that, I started noticing the amount of dead magnolias around Baton Rouge.

Best of luck to you.
Posted by Cage Fighter Trainee
Member since Aug 2024
137 posts
Posted on 5/1/25 at 2:18 pm to


My tree is continuing to lose leave but are these leaf buds or flower buds?
Posted by dgnx6
Member since Feb 2006
80424 posts
Posted on 5/1/25 at 3:25 pm to
quote:

Maybe over watering?

Can turn leaves yellow and they lose their healthy look.


I don't water mine and one of mine dropped a shite load of leaves over the past week.

The few flowers that did bloom all turned brown too.


This appears normal.

quote:

It is very common for Southern magnolias to drop leaves in the spring, particularly in April and May, as they prepare to bloom.



Didnt know that. My other tall arse southern magnolia didnt have a bunch of leaves under it though.


This post was edited on 5/1/25 at 3:29 pm
Posted by Galactic Inquisitor
An Incredibly Distant Star
Member since Dec 2013
17784 posts
Posted on 5/1/25 at 5:18 pm to
Mine started dropping leaves right as blooms started showing up. It has lost a bunch of leaves, but there are just as many young leaves on the tree now.
Posted by Spankum
Miss-sippi
Member since Jan 2007
58769 posts
Posted on 5/3/25 at 10:07 pm to
quote:

My tree is continuing to lose leave but are these leaf buds or flower buds?



I can’t see too well on my phone, but those look like flower buds to me.
Posted by oldskule
Down South
Member since Mar 2016
21901 posts
Posted on 5/4/25 at 8:30 pm to
I have one doing the same thing.
Posted by Pezzo
Member since Aug 2020
2610 posts
Posted on 5/5/25 at 7:32 am to
hopefully that snow didnt get it. i will say though, i have two southern magnolias in my front yard and they are constantly dropping leaves and limbs year round.
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