My hanging baskets are lush and full but no flowers.
This article will refresh you on the care requirements.
New Guinea Impatiens need evenly moist soil, and are heavy feeders.
Make sure you use a low nitrogen fertilizer; too much nitrogen will inhibit flowers leaving you a lush green plant.
If you have over fertilized, try adding a feeding of phosphorous rich Bone Meal.
Here are some links to help you.
https://www.gardeningknowhow.com/ornamental/flowers/impatiens/new-guinea-impatiens.htm
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/bone-meal-fertilizer.htm
I have planted my New Guinea impatiens in the same spot for several years with great success. This year I am getting no blooms just healthy looking green foliage. Why might they not be flowering?
It could be due to excess Nitrogen. Too much Nitrogen or over fertilizing can give you nice lush plants, but inhibit flowering.
When fertilizing use a low Nitrogen formulation.
You can add some Phosphorous to encourage flowering, Bone Meal is a good way to do this.
Here are some links with more information.
https://www.gardeningknowhow.com/ornamental/flowers/impatiens/new-guinea-impatiens.htm
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/bone-meal-fertilizer.htm
How do I plant New Guinea Impatiens seed? Do they need light to germinate? Or do they need darkness? How deep should they be planted? I want to start them in my greenhouse.
Sow seeds in lighting planting medium.
Temperatures between 70 and 75 degrees F.
No cover, as light aides in germination.
https://www.gardeningknowhow.com/ornamental/flowers/impatiens/new-guinea-impatiens.htm
The leaves on my impatiens are deformed, all shriveled and dwarfed. They are perfectly green, not yellow and don't look like they lack water. What is causing this?
Deformed leaves can be caused by disease, pests or even environmental issues.
This link has some information that may help pinpoint the issue.
https://extension.umd.edu/ipm/commercial-greenhouse-production/what-crops-impatiens
Hi I have many of these in my garden and would like to see if I can get them through the winter in my greenhouse. They will be lifted and potted up but should they be left as is or cut back and if so by how much. Many thanks Roy (Sussex, UK)
You can dig them up and replant them, and most likely they will survive. I would consider removing any blooms as this will interfere with root production. You can even start new plants from tip cutting. Here is an article for more information: https://www.gardeningknowhow.com/ornamental/flowers/impatiens/impatiens-rooting.htm
The new guinea impatiens have taken over in our large shrubbery. They were there when we bought the property. A few years ago I pulled a lot of it out but it is worse than ever again, smothering other plants that I had planted. It is hard to dispose of when you pull it out. Is there something that will kill it where it is?
Yes, boiling water will kill almost anything that it comes into contact with. It may take several applications, but it will solve your problem.
Do they like a wet soil?
I can say this with certainty... They do not like dry soil AT ALL. They will not tolerate soggy wet soil, but they will not tolerate dry soil at all. It needs to stay moist, but not overly wet or dry.
This article will give you more information on their care: https://www.gardeningknowhow.com/ornamental/flowers/impatiens/new-guinea-impatiens.htm