Can I trim a large limb that is low to the ground?

Question

My Tamukeyama Laceleaf is estimated to be 6 years old minimum. It was installed 3 years ago, but it was a larger tree, maybe 3.5 ft. tall then with a nice full shape. Now it is about 4.5 ft. tall. not counting the wild limbs that are sticking up high. The base of the tree is 4.5 inch diameter.There is a 1.5 inch limb at the bottom that is parallel to the ground. It probably should have been trimmed when it was younger. I am worried that as the tree grows and the limb gets heavier it will become problematic. I do not know if I should cut it off this winter or how that might affect the tree overall shape, beauty, or health. I need guidance.
Also, there are a lot of long limbs growing straight up and others sticking in all directions. Many are new growth. I am surprised since the limbs are supposed to be a graceful weeping cascading shape. I do not know how I should prune these wild limbs. Please advise.
And lastly, I am truly disappointed in the color. It is supposed to be bright red all summer and late into fall. You can see only a few limbs are red and they are wild in shape. It has been green all year long. What could be causing this lack of color?

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Answer 1

You can trim young Japanese maples to establish good form. You can trim that low branch for clearance. As to the wild limbs and lack of red color, I would contact the nursery or garden center where you purchased the tree. It doesn't sound like you got what you paid for.

https://www.gardeningknowhow.com/ornamental/trees/japanese-maple/japanese-maple-care-pruning.htm