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Help with yellowing trachycarpus

PostPosted: Mon Feb 13, 2017 11:56 pm
by Marc in Tsawwassen
I have some large trachycarpus fortunei and wangerianus which are yellowing to a degree.

I have heard that using a good quality slow-release fertilizer as well as run-of-the-mill Epsom salts a few times a year is a good strategy to reduce the yellowing.

And so....two questions:

1 - Most important question: Is it true that using slow-release fertilizer and Epsom salts will reduce yellowing?
2 - which months of the year should I apply them. I was thinking early April, July, and again in October.

Thanks!

Marc

Re: Help with yellowing trachycarpus

PostPosted: Fri May 19, 2017 7:51 am
by palmvalley
Hi Marc, The Palm Society Sale is Saturday May 20 at Phoenix Perennials and there will be the Palm Specific fertilizer there. (Slow release with micronutrients).It was manufactured for us here in the PNW and for our soil temps. Basically it is very similar to Simplot's Apex 13-5-8 Palm Plus fertilizer. (it is $10 - 2kg). This product works very well especially as it provides the Potassium and Magnesium that are needed to halt the yellowing. The long wet winter contributed to the leaching of the Potas and Mag in the soils. Hope all is well. CW

Re: Help with yellowing trachycarpus

PostPosted: Wed Oct 17, 2018 6:08 pm
by Marc in Tsawwassen
I solved my own problem! My trachycarpus have all greened-up. Some of them were pretty large to - one is 20 feet tall.

Here's the product I used - Jobe's Palm Spikes.
https://www.amazon.com/gp/product/B075B ... UTF8&psc=1

Palms use between 1 and 5 spikes, depending on their size. I apply in the spring and fall....and so, my large trachy will use 10 spikes per year!

Again, can't say enough about this product.

Marc

Re: Help with yellowing trachycarpus

PostPosted: Wed Oct 17, 2018 6:19 pm
by Marc in Tsawwassen
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