I tried a simple one, Earth Options by raid. It almost killed my flowers. What can I use on my flowers? Safely!
These articles should help: https://www.gardeningknowhow.com/plant-problems/pests/insects/japanese-beetles.htm
https://www.gardeningknowhow.com/plant-problems/pests/insects/japanese-beetle-resistant-plants.htm
My very large and healthy impatiens have suddenly been attacked by something. The stems appear to have been cut off, flowers are falling and dying.
It could be cutworms. Neem oil should help. Here is more information that sohuld help you: https://www.gardeningknowhow.com/ornamental/flowers/impatiens/impatiens-problems.htm, https://www.gardeningknowhow.com/problems/pests/neem-oil-uses.htm, https://www.gardeningknowhow.com/plant-problems/pests/insects/get-rid-cutworms.htm
A couple years ago they said a fungus was killing the impatiens after they got started blooming. Haven't planted any since. How can I grow impatiens after the fungus outbreak?
There are a couple of diseases which have seriously threatened the impatiens crops in recent years. Here is a link to an article about the powdery mildew disease: https://www.gardeningknowhow.com/ornamental/foliage/ornamental-grass/no-plumes-on-ornamental-grass.htm
and here is one to the Necrotic Spot Virus: https://extension.psu.edu/pests/plant-diseases/all-fact-sheets/impatiens-necrotic-spot-virus
These diseases are epidemic, despite the growers attempts to breed resistant strains of impatiens. Probably your best bet is to use alternative flowers: http://extension.umd.edu/learn/alternatives-garden-impatiens-because-downy-mildew-disease
I planted my impatiens this week and the flowers and leaves are being eaten by either a bug or a mite. It appears to be a smooth edge. That's what makes me think it is not an animal. Thank you for any advice.
I would venture to guess that either slugs or cutworms are the culprit in question. Neem oil may help with cutworms, as well as most other insect pests. Here is more information: https://www.gardeningknowhow.com/plant-problems/pests/facts-about-slugs-and-how-to-kill-garden-slugs.htm, https://www.gardeningknowhow.com/plant-problems/pests/insects/get-rid-cutworms.htm, https://www.gardeningknowhow.com/problems/pests/neem-oil-uses.htm
How deep does a pot need to be in order for impatiens to last the summer? I don't want to have to transplant it since it only lasts a year anyway.
The pot size should be approximately 1.5 times the diameter of the potted pot purchased. That means a 6” plant should be planted into a 9”–10” container. Three to four 6” plants should be potted into a 14”–16” container. This article will help with its care: https://www.gardeningknowhow.com/ornamental/flowers/impatiens/growing-impatiens-flowers.htm
I just planted some impatiens and then the weather got cold on us for a few nights. Now they look a little white. Are they hardy enough that they will survive for the most part, or do they need to be replaced? I had no idea we would have frost again when I planted them. And there was no way I could cover them, as the area was too big.
You can trim back the damaged foliage (provided the threat of any more frost is over) and as long as it's still green towards the base of the plant, it should regrow. Otherwise, you will need to replace the plants.
I bought a packet of impatiens and started the seeds indoors around February/March then transferred them outdoors about a month ago. The plants are long and leggy (about a foot long) and one or two can't grow any taller so they are falling over. Problem - there is no sign of a flower. They are planted mainly in the shade (about an hour or two of full sun). I chopped down the tree this weekend that provided most of the shade. They will now get about 3 or 4 hours of sun 1-4 pm. Is there anything I can do to help them flower? If not, I'll pull them out and buy something else.