Read your article on the subject, just wondering how to know precisely if the plants will return? Beautifully manicured boxwood hedge appears to have been devastated by sub 20-below temps. There is still less than 10% green leaves and I doused the plants with Copper fungicide and trimmed back 3-4 weeks ago. Can it possibly survive?
Yes it is very possible that they will recover. They are quite hardy shrubs. It may take them a year or two to readjust. This is going to be a game of patience now.
I've recently removed several chamycyperis (sp?) which has grown into my boxwoods leaving unsightly areas of brown leaves, branches - which may be dead areas. The boxwoods are 10 years old and about 40 inches tall. How is the best way for the shrub to recover - or do I call them a loss and pull them out?
The boxwood stems may put out new growth now that they can get some sunlight. Check to see if the woody stems and smaller branches and twigs are alive. Bend them to see if they flex or if they snap right off. Scratch the bark with a thumbnail, or take a thin slice of some bark off with a sharp knife or pruning shears to see if there is a green growing layer or if it's all brown and dry. If there is life in the bare branches, water and fertilize and give them some time to respond to their new lease on life. After a month, if no new growth has appeared, then you can remove the dead portions.
I just want to learn how to care for my Boxwood shrubs
Fertilize in late fall with a 10-6-4 formulation. These articles should help:
https://www.gardeningknowhow.com/ornamental/shrubs/boxwood/fertilizing-boxwoods.htm
https://www.gardeningknowhow.com/ornamental/shrubs/boxwood/boxwood-care.htm
Will a branch take root in water?
Yes, but it requires some time and patience. Here's how:
https://www.gardeningknowhow.com/ornamental/shrubs/boxwood/rooting-boxwood-bushes.htm
I have cut them right back, the centre of the existing stems are still green. Do you think they will recover , like Privet does, after being cut right back??????
It depends on how severely you cut them back and how old they are. Boxwoods don't take well to drastic pruning. However, only time will tell. Keep the watered regularly to help them recover. Here is more info:
https://www.gardeningknowhow.com/ornamental/shrubs/boxwood/trimming-boxwood-bushes.htm
https://www.gardeningknowhow.com/ornamental/shrubs/boxwood/boxwood-care.htm
Hi, I was lucky enough to find a Boxwood Topiary tree with a single ball. It is about 2- 2 and 1/2 feet tall. It seems very healthy. It is now in a planter (I could not believe they had one at Home Depot!). How do I care for the tree? Is it any different from my Boxwood shrub, since it is a tree? Should I wrap the bark in paper as I did another young sapling?
It is stil a shrub, just pruned into a topiary form. There is no need to wrap the bark but you will need to provide some extra care in winter since it is in a container. I would follow instructions for caring and shaping a topiary and growing boxwoods in containers. In the article below, toward the end it says to prune boxwood topiaries in spring, before new growth starts. Since yours is already shaped, you only need to remove new or errant growth to keep the shape.
https://www.gardeningknowhow.com/ornamental/shrubs/boxwood/trimming-boxwood-bushes.htm
https://www.gardeningknowhow.com/ornamental/shrubs/boxwood/container-grown-boxwoods.htm
I have several cuttings from a boxwood plant soaking in water. Will they eventually grow roots? and can they then be planted?
Yes, boxwoods can be grown from cuttings. This article will help you:
https://www.gardeningknowhow.com/ornamental/shrubs/boxwood/rooting-boxwood-bushes.htm