How can I prune my 3 'Summer Wine' ninebarks? The branches reach over, covering plants in front of them. Could I cut them down like spireas? I'm ready to take them out. I have three of them along the fence in my backyard. They're just getting too wild looking. The plants I have growing in front get robbed of sun. Thanks.
My new shrubs have what appears to be mold on some leaves and a larger stem. I do not think I looked close at the plant upon purchase. They are planted. Can they be saved? If so, how?
This is likely Powdery Mildew.
Here is a link that will help you.
https://www.gardeningknowhow.com/plant-problems/disease/get-the-cure-for-powdery-mildew.htm
My ninebark shrubs have developed a white powder on some of the leaves. What is it and what should I do about it?
This is likely Powdery Mildew.
Here is a link that will help you.
https://www.gardeningknowhow.com/plant-problems/disease/get-the-cure-for-powdery-mildew.htm
https://www.gardeningknowhow.com/ornamental/shrubs/ninebark/growing-ninebark-shrubs.htm
How do I propagate this plant?
These links will help you.
https://www.wnps.org/education/resources/documents/Garden_Links/hardwood_cuttings_and-live-stakes.pdf
https://www.gardeningknowhow.com/ornamental/shrubs/ninebark/growing-ninebark-shrubs.htm
Is Summer Wine ninebark or Burgundy Star ninebark closer to the color of the Cistena plum? Want something the color of the Cistena plum that the deer won't devour. Looking for 5 - 6 ft tall.
From my research both Summer Wine Ninebark and Burgundy Stat Ninebark are light pink cultivators.
Deer resistant plants; look for fuzzy leaves, thorns, strong fragrance, needled and thick foliage characteristics.
https://www.gardeningknowhow.com/plant-problems/pests/deer/deer-repellents.htm
https://www.gardeningknowhow.com/plant-problems/pests/deer/newly-planted-trees-deer.htm
I have a problem with white dust damages on the leaves and bark.
This sounds like Powdery Mildew.
This link will help you.
https://www.gardeningknowhow.com/houseplants/hpgen/powdery-mildew-treatment.htm
How long does it take in years to mature from a quart size
This is a fast growing tree that will reach approx 8 feet in height and width.
With the proper growing conditions it should reach a mature height in a few years.