Palm Leaves yellowing/browning, fertilizer burn?

[ewaforevah]

Over the past month I've noticed a few of our palm's the leaves are yellowing/browning rather dramatically. It's been kinda dry lately but the watering hasn't changed, and other plants/grass in the area seem well-watered. It's just 3 palms with one slightly worse than the others. Sorry I don't know what kind of palms they are.  The only thing I could think of was some fertilizer our lawn guy laid for the grass in the area 2 months back. Could that be it? Or is it under-watered? Or something else?

What can I do to solve the problem?

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[Jim in Los Altos]

Pygmy Date palms (Phoenix roebelenii) like as much water as you can give them. Feeding is also important. They have high magnesium needs. I’d suggest you get a good palm specific slow release fertilizer and feed them spring, summer, and fall. Summer heat will get them growing fast if they are nourished and watered well. 

Edited April 28, 2022 by Jim in Los Altos

[Looking Glass]

If you are in Florida, date palm of various types are notorious for simultaneous potassium and magnesium deficiency.   They need regular palm fertilizer plus additional K/Mg several times per year here.  They also benefit from frequent, deep soaks with the hose, especially during the spring portion of the dry season, when it’s getting hot out but the rains haven’t started yet.  

I’d say yours is showing potassium much greater than magnesium deficiency, I’d bet it would respond to Langbeinite, a hit of quality palm fertilizer, and aggressive hose watering.  

PS - it’s best to upload your pics directly into the post so everybody can see them. 

[DoomsDave]

@ewaforevah nice to meet you! Are you in Honolulu? Just curious.

 

[ewaforevah]

Thanks for the tips. I'm on Oahu.