Recommend me a simple mix for Trachies

[Palmfarmer]

I need to repot my Trachycarpus palms. I have access to the following materials: vermiculite, perlite, Pumice, lava rocks, sand, rock dust, sandy loam soil, compost, peat moss, Coco coir. 
 

I was thinking to just mix something like this: 

2 parts peat and 1/2-1 part perlite then add some osmocote and other goodies for nutrients. What do you guys think? 

[Leelanau Palms]

I've grown trachys in pots for 3 years, watching them increase from ~ 12-14" tall to over 3 feet tall now with the start of a trunk. They spend the summers outdoors in occasionally windy conditions. I've repotted them annually to date. So far I've used only MG moisture control potting soil (blue bag) with very good results. The trachys have thrived in this heavier, wetter medium, which also anchors them in the wind. I back off on water throughout the winter while they hang out in my cool observatory. I suspect your proposed mix would be just fine. Trachys seem very adaptable. 

[Palmfarmer]

21 minutes ago, Leelanau Palms said:

I've grown trachys in pots for 3 years, watching them increase from ~ 12-14" tall to over 3 feet tall now with the start of a trunk. They spend the summers outdoors in occasionally windy conditions. I've repotted them annually to date. So far I've used only MG moisture control potting soil (blue bag) with very good results. The trachys have thrived in this heavier, wetter medium, which also anchors them in the wind. I back off on water throughout the winter while they hang out in my cool observatory. I suspect your proposed mix would be just fine. Trachys seem very adaptable. 

I will try 50/50 peat and pumice. It’s the same as Gary’s Acid mix. Should be nice and acidic too

[Leelanau Palms]

Latest picture of one of my two large trachys in pots. It is throwing out THREE spears here in early spring while it waits indoors for warmer weather.

[Paradise Found]

Here is my simple trachycarpus potting soil. 
1/4 perlite 

1/4 small lava rock 

1/2 compost

[Palmfarmer]

On 3/8/2024 at 8:21 PM, Paradise Found said:

Here is my simple trachycarpus potting soil. 
1/4 perlite 

1/4 small lava rock 

1/2 compost

Thanks I will try yours including another I found that is: 

1 peat moss

1 pumice 

top dress with compost 

[Paradise Found]

Not sure I like the new one you found that’s a lot of peat moss. Your going to have a hard time keeping the soil moist if it drys out.  Just my two cents 
Thanks for liking my Trachy mix. 

[Palmfarmer]

4 hours ago, Paradise Found said:

Not sure I like the new one you found that’s a lot of peat moss. Your going to have a hard time keeping the soil moist if it drys out.  Just my two cents 
Thanks for liking my Trachy mix. 

I have used that mix on my blackberry tree. It retains moisture very well. 

The last mix I will try is maybe something like pure pumice with a water resorvoir at the bottom of the pot.