The ants seem to love my rosemary plant. How can I get rid of them when I bring my plant in for the winter?
This article will help you:
https://www.gardeningknowhow.com/plant-problems/pests/keeping-ants-of-flowering-vines-vegetables-and-flowers.htm
Yes, you can propagate it from the stem. The soft stem is called softwood. This article will help you with rooting it:
https://www.gardeningknowhow.com/edible/herbs/rosemary/how-to-propagate-a-rosemary-plant.htm
I have not been successful in bringing my rosemary plants inside for the winter. Leaves turn yellow and they seem to get mites or something. I really don't want to have to repurchase plants every spring. I live in Seattle and leaving them in a protected spot outside would be great, but I prefer to bring them inside.
If you have not read it, this article will help:
https://www.gardeningknowhow.com/edible/herbs/rosemary/grow-rosemary-indoors.htm
I love neem oil for my houseplants in the winter. It does a great job of keeping off the powdery mildew and pests that can kill indoor plants. Here is more info on that:
https://www.gardeningknowhow.com/plant-problems/pests/pesticides/neem-oil-uses.htm
What plants are acid loving?
Rosemary normally likes a pH of between 6-7. For additional acid-loving plants, this article should help: https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/acid-loving-plants.htm
There is a sticky white substance on the rosemary plant. It appears in pea sized clumps throughtout the bush. What is it? Is it harmful to the plant or to humans or dogs? When watering the plant, I spray the clumps with the hose, they are easily washed away but reappear. Is it necessary to remove it? Is there a way to keep it from happening?
It sounds like you have a pest of some kind, perhaps scale or spider mites. They can sometimes be hard to see. Check the plant carefully for pests. Spraying it daily for a week or so will help to reduce their numbers and treating the plant with an organic pesticide should finish them. These recipes will help with that: https://www.gardeningknowhow.com/special/organic/natural-home-pesticides-organic-garden-pest-control.htm
I live in Phoenix, AZ. and am growing Basil, which is doing very well and I just planted Rosemary. I have no clue how to care for it though. Help.
Here are articles on caring for those plants:
https://www.gardeningknowhow.com/edible/herbs/basil/how-to-grow-basil-plants.htm
https://www.gardeningknowhow.com/edible/herbs/rosemary/growing-rosemary-plants-rosemary-plant-care.htm
You may also find this article helpful:
https://www.gardeningknowhow.com/special/xeriscape/integrating-vegetables-and-herbs-into-the-xeriscape-garden.htm
I purchased a small rosemary shrub in a pot. Repotted in a bigger pot and it lives on my balcony in full sun. It appears to be losing its dark green leaves and they are going brown. Any ideas how to bring it back to life?
Rosemary in containers need to be kept consistently moist, but not in standing water. I would increase the frequency of its watering.
It may also be a fungus causing the browing. As a precaution, I would treat the plant with a fungicide.