I think we cut the golden arbavida back too much and it now looks like it's dying. What kind of fertilizer can I use to try to save it?
I would not fertilize it at this time. The plant is under stress and the fertilizer can burn the roots easily when plants are stressed. I would provide more water to the plant and perhaps a little sugar water to provide extra energy.
I have a green giant Arborvtae. It's young and only 5-feet tall. Heavy snow has bent the limbs at the main trunk of the tree. They are split right at the trunk, but not broken off. The limbs on these trees are not close together. Their spacings are about 3-5 inches apart from bottom to top of tree. Cutting the branch off would make the tree look very wrong. I would like some repair advice.
Unfortunately, the plant may be irreparably damaged. But, you can try tying the branches back together in the way they were before and seeing if they will heal back. Sometimes this is successful.
I have three arborvitae pine trees and they have what looks like cocoons all over them and they have spikes on them. Are these some kind of blooms or is it some kind of bug?
It is a bug called a bagworm. This article will help:
Could you please recommend a root stimulator to ease transplant shock?
You can try Organic Root Stimulator, but these products are not always necessary. For newly planted trees/shrubs, I would simply water more deeply for at least 2-5 minutes to penetrate the soil.
These articles will also help:
Two previous planted arborvitae died over the winter. . . same spot, two successive winters. I have bought a new one from Home Depot. Rather than plant again, I would like to keep it in its container and put it on the deck. Is the potting mix of commercial container OK to leave as is? It seems to look healthy as is. Should I fertilize and store in garage over winter?
These articles should help:
I would like to plant 10 Emerald Green Arborvitae in a raised bed, contained by wooden walls. The run is approximately 22 feet long, two foot deep, and two foot wide (all filled with soil and a pipe to aid drainage). Would they survive in that much soil? The base of the bed would be planted on soil so the roots would have access to soil within the box and under it.
If they have access to the soil below the bed, then they will have no problem surviving in a raised bed.
I have an arbivitae that is loaded with bagworms (seemed to happen literally overnight!). They are starting to spread to neighboring shrubs. I got an organic spray (Neem triple strength) from our nursery, but so far haven't gotten good results. What else can I do? Picking them off by hand will take a LONG time - there's a lot of them!
Here is an article that you may find helpful: https://www.gardeningknowhow.com/plant-problems/pests/insects/treatment-bagworms.htm