Leaves are turning red on established variegated red twig dogwood bushes. What does this mean? Lost one bush already. What can I do to save the others?
Dogwood is effected by a few different diseases.
From your description, I would say it is likely Septora Leaf Spot.
I have listed some links for you that include images to help you pinpoint the cause and determine if treatment is necessary.
http://plantpath.caes.uga.edu/extension/plants/woodyornamentals/SeptoriaLeafSpot.html
https://extension.psu.edu/pests/plant-diseases/all-fact-sheets/dogwood-diseases
http://www.uaex.edu/publications/pdf/fsa-7564.pdf
We planted a dogwood red twig shrub in a large pot for our patio. It was planted in April 2016 and looked beautiful, it bloomed and now the leaves and flowers are browning. Can you suggest what's the best thing to do? We plan on transplanting it to the ground in the fall as we are in a new home and weren't sure just where we want to place it. Appreciate any advice - is this normal or what should we do to save this plant? Thank you
How is the soil? Dogwood, especially a new planting will need to be kept moist, but never soggy. The container should have good drainage.
You will need to water daily, even twice a day in warm weather.
If the soil is not draining and the roots are sitting in over wet soil, the shrub could also suffer root rot.
https://www.gardeningknowhow.com/ornamental/trees/dogwood/red-twig-dogwood-care.htm
I have three red twig dogwoods planted in a row. The leaves on one of them turned black about 2 weeks ago. Any idea what about what is happening?
This sounds, either, bacterial, or fungal in nature. I have a remedy that I use personally to treat the ground, and the plant. It is harmless to the plant, and much less toxic than conventional methods. It is as follows:
First, you will want to prime the ground with dolomitic lime, then spread wettable sulfur to Kill off any infection in the soil. I Also like to spray the plant itself. Mix a few drops of one or more of these ingredients into warm water with a spoonful of coconut oil: Rosemary oil, lavender oil, neem oil, garlic oil, cinnamon extract/oil and for really bad cases, also add clove oil.
Will Red Twig Dogwood grow well in very sandy soil if exposed to full sunlight? If so, it would make great erosion control on our lake property's shoreline in northern Minnesota. If not, what type of plantings would you suggest for erosion control which would also have a nice summer look?
It would survive there, and do just fine. I would not recommend it for erosion control, as it grows a taproot and will not do a very good job at this. There are many things you can plant for erosion control. This article will help: https://www.gardeningknowhow.com/plant-problems/environmental/plants-for-erosion-control.htm
Here are more article for erosion control shrubs: https://www.gardeningknowhow.com/ornamental/shrubs/cotoneaster/how-to-grow-cotoneaster.htm
https://www.gardeningknowhow.com/ornamental/shrubs/coralberry/coralberry-shrub-information.htm
https://www.gardeningknowhow.com/ornamental/shrubs/coyote-bush/baccharis-coyote-bush-care.htm
https://www.gardeningknowhow.com/ornamental/shrubs/broom-plants/information-on-broom-shrubs.htm
https://www.gardeningknowhow.com/ornamental/shrubs/rockrose/how-to-grow-rockrose-shrubs.htmhttps://www.gardeningknowhow.com/ornamental/shrubs/juniper/growing-creeping-junipers.htm
https://www.gardeningknowhow.com/special/slope-hill/hill-ground-cover.htm
can you plant a red twig dogwood in Dec.?
This all depends on where you are located. I would recommend planting in spring usually, but depending on your location it could be ok. If you can provide me with this information then I can, better, help you.
Here is an article on the tree: https://www.gardeningknowhow.com/ornamental/trees/dogwood/red-twig-dogwood-care.htm
can you plant this to have inside the home?
Red twig dogwood can certainly be grown in a container. The question for growing indoors is whether they can be kept small enough. Based on what other gardeners have said, it seems they can be kept small by pruning them back every spring to the desired size. Also, the more light you can give them, the better they're likely to look. If the leaves start to look yellowish, try keeping them outdoors in summer and indoors in winter.
I bought a Cardinal red twig dogwood and its all green.
There could be several reasons for this. Can you include a photo? It is quite common to be mislabeled from the place that it came from. It could, also, be a variety that will mature into its color.
A photo may help me to see what is going on, exactly.