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Magnolia Tree Help

3,992 Views | 8 Replies | Last: 2 yr ago by cupofjoe04
cupofjoe04
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Help me OB-wan Kenobi. Y'all are my only hope!

Location: North Dallas (McKinney/Melissa)

The kids and I bought this Black Tulip Magnolia for my wife for Mother's Day, and planted it at our new-to-us house. It had seemed to do just fine thus far, been in the ground about 10 weeks.

I watered it really well for the first 6 weeks. Kept the soil moist, but not wet. Added a little tree fertilizer and a good layer of mulch.

The past couple of weeks, it has really been showing a lot of stress. To be fair- most Mag's I see in our area look very similar right now. Most of the leaves that were on the tree when purchased/planted are pretty crispy, and turning brown/black. Some have white spotting appearing. Some are brown and totally fried. There is also new growth apparent. Fresh green leaves of varying sizes, have been emerging consistently.

Is this just stress from the drought? Stress from being planted? I had backed off the water a bit (just getting lazy), but still giving it a thorough watering once per week. Should I increase it to twice per week and water slower/deeper? Should I remove the really brown/black leaves? Any other diagnostic or treatment advice?

TIA for the advice.




The Last Cobra Commander
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Liquid copper fungicide. Any garden center should have something that'll work.
The leftist is driven by something other than facts and can’t be cured.

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ATXAdvisor
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If it's making new leaves, I'd keep doing what you're doing. Once it cools down in a couple of months, put some fertilizer down for the roots to develop.
Serious Lee
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looks like powdery mildew. copper fungicide and remove those decaying leaves. planting trees in May is pretty stressful, likely what caused the fungus.
LukeDuke
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I've never seen a healthy looking magnolia tree in the DFW area.

The climate and soil must not be suitable.
cupofjoe04
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LukeDuke said:

I've never seen a healthy looking magnolia tree in the DFW area.

The climate and soil must not be suitable.


Really? I've seen a bunch of good ones around. Not as many of the true southern magnolias like grew huge in the neighborhoods in Houston, for sure. But I've seen some nice ones around Argyle, Lantana, and Frisco I know.

Around me, there are a some smaller ones in people's yards that are doing OK (look relatively young), and a string of medium sized ones planted along the highway in Melissa. Those look about like mine does- pretty crispy. I'm assuming they don't get as much water as they need, but have no idea.

I'll try the fungicide, thanks for the tips guys!!!
dtkprowler
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LukeDuke said:

I've never seen a healthy looking magnolia tree in the DFW area.

The climate and soil must not be suitable.
Grew up in DFW area and my neighbor had a Magnolia that had to be at least 80ft tall. Was MASSIVE and the best tree to climb for miles around. Might be an outlier but they definitely can grow up here.
76Ag
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We had one that was doing poorly. They like acidic soil. I started applying Sulphur around the base and injected Ross root feed in the ground. It took awhile but soon looked much better. We had to sell that house, though. I drove by there recently and I could tell the new owners weren't doing anything and that tree is now dead. Azaelias require the same care.
cupofjoe04
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76Ag said:

We had one that was doing poorly. They like acidic soil. I started applying Sulphur around the base and injected Ross root feed in the ground. It took awhile but soon looked much better. We had to sell that house, though. I drove by there recently and I could tell the new owners weren't doing anything and that tree is now dead. Azaelias require the same care.


Thanks so much for the specific tips!!! I'm going to try these as well.
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