I have just one medium size bush. Can I get different color flowers on that one bush?
We had a beautiful shrub, sorry don't know the name. Leaves are a dark red. I went to mow and all the leaves are now brown. There is a tiny nest around the leaves with tiny larvae. Only a few shoots remain with any color. Can I trim back the bush, eliminating all the affected areas? This has been a hardy and healthy shrub. They are not tent caterpillars. Hope that's enough info. How far to cut back? It's a 4 ft bush.
Yes, trim away the dead material and treat with Neem Oil. Destroy the material, do not compost.
https://www.gardeningknowhow.com/plant-problems/pests/pesticides/neem-oil-uses.htm
We use potassium chloride in our water softener system because we were told that salt will harm our plants. The runoff from the system is buried about 2 feet in the ground below one of our plant beds. The evergreen plant closest to the pipe is beginning to show some sort of distress (needles are turning brown and falling off and shrub is turning yellow). Could it be getting too much potassium? The rest of the plants in the bed are OK.
Yes, it could be the results of salts building up in the soil.
A soil test is the best way to determine if this is happening.
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/testing-soil.htm
Tree seems to be drying up, but has been watered regularly.
Orange trees planted in the ground will need 1 to 1 1/2 inches of water per week.
If this a newly planted tree you may need to increase this amount.
If this is a potted citrus tree, daily water is generally needed and if temperatures are above 85 degrees you may need to water twice a day.
I am listing some articles to refresh you on the care requirements.
https://www.gardeningknowhow.com/edible/fruits/oranges/growing-an-orange-tree.htm
https://www.gardeningknowhow.com/edible/fruits/oranges/orange-tree-container-care.htm
https://www.gardeningknowhow.com/edible/fruits/citrus/fertilizing-citrus-trees-best-practices-for-citrus-fertilizing.htm
I planted about 20 flaming bush shrubs, and only about 5 put on leaves and they only put on one or 2 leaves each. I don't think they are not dead because the stems are still green. What have I done wrong?
As long as the stems are still green, the shrubs are still alive. It could be that they are simply slow to start new growth due to having a bit of shock, which is causing them stress. Normally, this rights itself given some time while the roots establish. All you can really do is ensure they are receiving adequate water (and good drainage) and double check their growing conditions to make sure they are receiving appropriate light.
I would give them more time to acclimate to their new surroundings.
Lots of these curly bushes are drying up in many different areas. Have had to cut several but don't want to lose them all. What is happening to them?
There could be a few different issues.
Here is a link that will help you pinpoint the cause and possible solutions.
The fact that multiple trees are infected is concerning and you may want to consult a professional arborist.
http://www.extension.umn.edu/garden/diagnose/plant/evergreen/pine/needlesonebranchdie.html
My container shrub (brought inside for winter) that smells like a eucalyptus, but is not, small leaf, is dropping all its leaves. Should I cut it back? It is in a sunny window. I sprayed it for bugs, and don't overwater. Should I move it to the basement?
Winter care depends greatly on the type of plant. Some shrubs or plants go dormant for winter and need a dark location, others do not.
Without know for sure the plant species you have I would say that if the leaves have dropped, cut back on watering and leave the plant in a sunny location.