Acer glabrum. Rocky Mountain Maple. This is a project from my back yard that I am very excited about!
I have not seen Rocky Mountain Maple used much for bonsai. But I believe the species to have great potential. I find a. glabrum to be very similar in many ways to a. palmatum, Japanese maple.
Here’s a photo of the mature, hardened off leaves from two japenese maples and two Rocky Mountain maples, all four trees with distinct genetics. You can see that the largest leaves from the glabrums are quite a bit smaller than the largest leaves from the palmatums:
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Now, I am not yet ready to declare that we can achieve smaller leaves with glabrum than with palmatum. These are just a couple data points. But the Rocky Mountain maple is certainly capable of nice-sized leaves for bonsai.
Here’s a Rocky Mountain Maple that I am working on propagating. Today’s project is a simple air layer. My main goal is just to acquire more plant material of this species since they’re pretty rare to come across in nurseries around here, but you can find them if you look!
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I threw a container on there...and now we wait.
This is definitely a species that I will continue to explore