Ok, the tree is about 14 to 15 years old. This year after winter we noticed that the trunk is splitting in half from the top down. The trunk is like a cross and on one of the two branches that form the cross, it is starting to split. Can anybody tell me why and how can I save it? I love this tree. The tree is about 4' feet tall and about 14 to 15 feet wide. It is a Japanese Red Princess Crimson, something like that. Help.
It is hard to say what caused the damage, but I would venture to guess that the weight from snow and ice may have caused the trunk to fail.
You can bolt the pieces back together. This article will have more information on how to do that:
http://essmextension.tamu.edu/treecarekit/index.php/after-the-storm/tree-damage-and-hazard-assessment/repairing-storm-damaged-trees/ (in the split fork section)
We have a mature Japanese maple. Unfortunately, the 'gardener' tried to prune it and has cut almost all the way through the main trunk at the top. Will the tree still be able to get nutrients to the top if we seal the cut?
Tree wound sealants are no longer recommended. In fact, sealants wound dressings for trees may actually interfere with its natural healing ability. Most trees will eventually produce tough calluses that help prevent decay or disease. Your tree is probably going to be fine. I would give it some time before trying anything drastic, as long as the tree is not showing any signs of problems. If this is the case, you may want to seek out some professional advice.
What causes this, and what can be done to help fix this problem?
There is many things that can cause this. The first culprit is normally fungus. You can treat fungicide for this. Pests are another common cause. A pesticide will manage this. It could also be under watering, over watering, root rot or a few other things. Can you send us the way the leaves look before they turn brow? This will help us better pinpoint what the issue is.
Does a Japanese thread maple need acid or alkaline fertilizer?
They need a balanced fertilizer, neither acidic nor alkaline. Something with a pH of 5-7 would be best.
What sort of feed should I give to my Acer palmatum? It's in a large pot and the shrub is about 5' tall.
Give it a fertilizer that is a bit higher in nitrogen. That will help it grow a little more lush.
Our 2nd year dwarf Japanese Maple tree has done really well, but this year, when we returned home from vacation in early May, we noticed that a number of leaves look almost burned. A friend said there was a bad frost when we were gone. Could this have done that and should we just remove the bad leaves, or is there more we can do?
Yes, a frost would have damaged any new leaves on the plant. It takes them a little bit to build up a weather tolerance and if a frost happens before they do, it will kill the leaves. Remove just the leaves and there is a good chance the branch will regrow them.
We recently bought one Japanese maple and one dogwood, trying to add value to the front yard. However, I become so scared after reading so many articles of trees that may damage the foundation. We planted these two trees in our flower beds, very close (2 or 3 feet away from) to the house. Should we move them?
Both of these trees are good foundation trees as they will not damage the foundation. They will be fine where they are.