I thought that I lost my creamy white 5-year-old J&P (Whisper) Hybrid Tea Rose tree last year. I cut it down and it is now back as a red rose bush. What happened? Why did it change color and become a completely different kind of rose?
Tree roses are created or built by grafting a desired rose bush (up to four actually) to the top of a hardy rose rootstock cane that has been trained up to act like a tree trunk. The bottom hardy portion of the tree rose can be a rose named Dr. Huey while the top part, the part you liked so well, is another rose bush, such as the Whisper variety. The top part is what most often dies due to the cold winters. If the bottom part does survive, it will put out the red blooms that are typical of the hardier root stock. The Whisper portion of the tree rose you originally purchased is now unfortunately gone. This article has additional information: https://www.gardeningknowhow.com/ornamental/flowers/roses/learn-more-about-tree-roses.htm
Some of my roses are putting out their new spring growth with predominantly red leaves. The leaves look healthy, but instead of being green, they are a deep violet in coloration. I'm wondering if there is a nutrient deficiency.
This is normal! The new growth will fade to green as the branch matures. Meanwhile, enjoy the nice variation.
Received this lovely plant for Mother's Day, but I live in a Zone 2 area. Should I leave it in the pot or plant it and dig it up in the fall?
The Red Sunblaze is said to be okay for Zone 5b and warmer. I would just plant her in a nice big pot where she has room to grow and put her outside in season the then move her back inside in the fall. Planting the rose and digging it up each fall can cause undo stress upon the rosebush and its root system. She is a beautiful rosebush. :o)
My yellow patio rose plant has got a white powdery coating on leaves. What can I do?
Neem oil can sometimes be effective. These articles will help: https://www.gardeningknowhow.com/ornamental/flowers/roses/roses-powdery-mildew.htm
https://www.gardeningknowhow.com/plant-problems/pests/pesticides/neem-oil-uses.htm
Great advice Nikki. Spraying them ASAP with a product such as Green Cure is very important. The sooner the fungus is killed the better before it weakens the rose too much.
What can I apply or use to keep dogs out of my rose beds and gardens? We have one new one in the area that likes to bite the buds and blooms off of any flowering plant. Also likes to dig in the same areas. . . . Help!!!
This article can offer some suggestions: https://www.gardeningknowhow.com/plant-problems/pests/animals/natural-homemade-dog-repellent.htm
I read that article and tried the vinegar first. The dog promptly went over and picked up one of the cotton balls soaked with vinegar and pranced around with it in his mouth! That did not work so well.....
I want to take a slip from a rose and start a new rose.
It takes some very real patience to do this for most folks but those that have done it for a long time have gained on the successes. Keep in mind that most rosebushes are grafted roses. The top part is the rose we like and the bottom part or root stock is a much hardier rose. Thus when we start a new rosebush from the cuttings, the new rosebush may well be too weak on its own roots to survive. Especially if you live in a cold climate area. Here is a link for you on the subject and best of luck to you:
https://www.gardeningknowhow.com/ornamental/flowers/roses/roses-from-cuttings.htm
What type of blight or bug eats on the foliage and leaves a clear spot on the leaves of roses?
The damage that you describe could be either a rose leaf hopper or maybe even a rose slug. On some occasions, I have seen aphids do this as well. I would imagine it is the leaf hopper, as the slugs usually leave holes instead of the clear leaf areas. All may be controlled using something like BioNeem by Safer or Ortho Rosepride Insect Killer.