I have a ton of marigolds and would like to know if I still should be deadheading them or will they still look attractive for the next couple of weeks if I don't deadhead anymore? I live in North Dakota, so our annual flower season is coming to a close.
Deadheading will certainly make them look better, as they can become rather unsightly once the flowers begin dying out.
I have three plants, one in full sunlight with water only, a second in partial sunlight with plant food, and a third one with no sun light and plant food. The two flowers with plant food died after one and two weeks after I planted them. Why?
It is possible that the plant food was applied incorrectly or at too high a rate and this burned the roots, which then killed the plants.
The other possibility is that marigolds love sun. If they do not get enough sun, they will slowly sicken and die.
I had a whole bunch of healthy marigolds in a greenhouse and one night recently it got too cold and now the plants are limp and blackish. I snipped the top off of one and found the inside stll wet and bright green. What do I do to keep my marigolds alive and regrow them?
They may be beyond saving, but if you want to try, the only thing to do is to just give them good care and keep them warm. They may regow the leaves they lost if the stem is still alive. Remove any dead growth.
What is the best way to harvest marigold seeds?
I simply deadhead the spent blooms, allow them to dry and then place them in a cool, dry location until the next season. I also place them in a brown paper bag for storing.
What is eating my marigolds? I just planted and leaves are already stripped.
It could be slugs. This article should help: https://www.gardeningknowhow.com/plant-problems/pests/facts-about-slugs-and-how-to-kill-garden-slugs.htm
You can also try spraying the plants with neem oil to prevent other insect pests from munching on them. Here is more information: https://www.gardeningknowhow.com/plant-problems/pests/pesticides/neem-oil-uses.htm
I am trying to grow vegetables in a straw bale garden. There are lots of mushrooms growing, but there are heaps of tiny flies and what looks like red mites on the top soil. I think they are eating all my young plants. I put the plants in and the next morning they are almost all gone. The stems and the veins of the leaves are still there but nothing else. The marigolds are also being eaten including the flowers. I thought it was caterpillars but the spray for them doesn't work. Then I tried Scotts Bug B Gone insecticidal soap and that hasn't worked. So now I'm trying home made white oil. I am at a loss to solve this problem. Help. -
I would treat both with neem oil. It is very effective and safe. This article will help: https://www.gardeningknowhow.com/plant-problems/pests/pesticides/neem-oil-uses.htm
I believe that I have garden slugs, but I am not sure. I have seen them in the garden before but have not paid much attention to them. This is also the first year that I have mulched this area with chipped leaves. They are eating the leaves of my plants, especially the marigolds and mums. They have eaten some of the flowers of the annuals and attacked my one potted green pepper plant. I haven't seen specifically the eggs, but I haven't gone looking under the mulch either. The leaves don't have a white or slimy trail, but they have been eaten.
It could still be slugs as sometimes it is hard to see any trail. Here is a link to an article that should help you out: https://www.gardeningknowhow.com/plant-problems/pests/facts-about-slugs-and-how-to-kill-garden-slugs.htm
I have used Slug bait granules and the beer methods before with great success.