How much would it be to take a hedge out completely?
The root structure depends on the variety that you are growing.
I take off dead or dying leaves from my plants either houseplants or outside plants. It is my understanding that the plant will try to help the bad leaves. I want the plant to focus on the healthy leaves so I eliminate the sick ones. My husband says "who does that out in nature?" Am I wrong?
This can depend on the plants that you are working with, but in most cases removal of dead plant material is a beneficial task.
Dead heading spent flowers generally will help the plant produce more flowers and for a longer period.
In the case of bulb plants or many perennials such as Daylily, you should leave the foliage to die down naturally.
You can search about the care of specific plants on our Gardening Know How site.
Please, can you tell me what to spray onto this still very healthy shrub? It's infested with theses fatty lumps that are in the apex of the branches, see attached. Many thanks, Avril.
These look like galls, which are abnormal growths on a plant caused by an insect or disease infestation. If the lumps are only on one or a few branches, the best treatment is to remove those branches, wiping your pruning tool between cuts with a 10% bleach in water solution to prevent the spread of disease.
Here is more information on galls:
http://www.mortonarb.org/trees-plants/tree-and-plant-advice/help-pests/plant-galls
http://www.clemson.edu/cafls/departments/esps/factsheets/turforn/plant_galls_induced_by_insects_and_mites_to03.html
I forgot to mention that when you break if off, it has a Cayene pepper looking powder inside. It seems to be a parasite. Once I have removed the larger lumps, would oleum be effective?
If I want to use copper sulfate to minimize or treat tree lichens is the copper sulfate harmful to animals, especially pets such as cats and dogs?
Yes, Copper Sulfate is a poison to humans and pets.
This link will help you.
https://www.gardeningknowhow.com/ornamental/fungus-lichen/treatment-tree-lichen.htm
Looking for a list of native trees to the Piedmont in North Carolina
These links will help you.
https://gardening.ces.ncsu.edu/2015/08/nc-tree-identification/
http://ncforestservice.gov/publications/IE0115.pdf
You can also talk with your County Extension Office.
Here is a link to find the office nearest you.
I have seen an ornamental tree with bunches of pink blossoms that are similar to white pear blossoms. The blossoms are like pink snowballs, rather than spread out like a cherry. Also, they are a brighter pink. Any ideas?
Can you include a picture of this? This can match many descriptions.
we want to kill a tree that is a real pain
There are 3 options for killing a tree. 1. cut it down and dig out / grind the stump; 2. "girdle" the tree by cutting off the bark and first layer underneath(phloem): encircle the tree about 6" wide and 6-12" from the ground; 3. cut it down and immediately apply glyphosate or triclopyr concentrate to the ring just beneath the bark. The latter method works best if the tree is first allowed to leaf out completely. The second option may result in numerous suckers below the girdle that will have to be removed promptly.