We have tree azaleas that the branches are turning black color with a black powder residue that falls to the ground. There are also white looking (I think) powdery spots on the branches. Is this treatable?
This is sooty mold, usually caused by pests--in this case probably azalea bark scale. Here is an article that you may find helpful: https://www.gardeningknowhow.com/ornamental/shrubs/azalea/azalea-bark-scale.htm
I would treat the shrubs with neem oil, which should take care of the sooty mold as well as the pest. Here is more info: https://www.gardeningknowhow.com/plant-problems/pests/pesticides/neem-oil-uses.htm
https://www.gardeningknowhow.com/plant-problems/disease/how-to-get-rid-of-sooty-mold.htm
How can I root a cutting from an azalea?
Here is an article that you may find helpful: https://www.gardeningknowhow.com/ornamental/trees/tgen/how-to-root-cuttings-from-various-shrubs-bushes-and-trees.htm
I am consistently taking cuttings from plants I wish I had myself. I make quite sure how to first cut properly depending on the type of plant as to NOT hurt the original mother shrub, bush flower, perennial, or any plant sample. Once I have read thoroughly on how to I then head out with pruners in hand and....a bottle of honey. That is right, bee made nature honey. For as soon as I make the cut I dapple honey over the cut part and then I dip my share of cutting in to the honey as well. Then I bring home and put in a like warm water glass in the window and watch them develop roots. As soon as I see about a half inch worth of roots depending on plant, others only quarter inch of roots fibers needed.I then plant into sterile clean potting soil as to avoid at all costs the spread of any unforeseen disease. After a week or two and the slapping is standing tall on it's own I then start to top off soil with a tad bit of compost. And continue for a least a month. Then it is ready for any container and hopes of a long and happy life.
Best of Luck,
Suzette trimmer
The bark is peeling off my azalea bush. Can you tell me what I can do to stop this? The bush has not looked very healthy the past few years, stunted growth, and I'm afraid it will die soon if I don't do something. We do have ground moles in our yard, but don't seem to be in this mulch bed.
Sounds like cold damage. Cold injury appears as peeling, sloughing, splitting or cracking bark often near the soil surface. Injured plants or branches may die in early spring, late summer or several years later. Flower buds may also be killed without damage to the stems. Cold damaged plants should be pruned back below the injured bark as soon as possible.
Here is an article that you may find helpful: https://www.gardeningknowhow.com/plant-problems/environmental/tips-for-saving-cold-damaged-plants.htm
Can I plant my azalea on the west side of my house where the sun is shining in the afternoon?
Yes, as long as it receives plenty of water during the growing season, it should be fine.
I live in Oregon; therefore, we have a lot of rain. My azaleas have a silvery, lacy moss growing on the branches. How can I get rid of the moss?
It is most likely lichen. It is not harmful to the plant, but if you want to get rid of it, this article will help: https://www.gardeningknowhow.com/ornamental/fungus-lichen/treatment-tree-lichen.htm
We have a deciduous azalea 'Mary Poppins' that has been planted in a large tub. We used ericaceous compost and have kept it well watered. It did not flower last May and does not look like it's going to be flowering this year. It has no buds on it. The leaves are green with a tinge of red. Can you help?
It sounds as though the plant is lacking phosphorus. This would cause the plant to stop blooming. Add some phosphorus to the soil. This article will help: https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/phosphorus-plant-growth.htm
What is chewing holes in the new growth of my azalea leaves? I see many small white moths flying around. We have just pruned the plants and I have noticed lots of moths. How do I treat to keep them from destroying all of the new growth and what do I do to kill the moths?
I suspect it is an Azalea Caterpillar Moth. This article will help:
http://edis.ifas.ufl.edu/in294