I planted zinnias, marigolds and morning glories by a telephone/electrical pole twice. The first time it was only zinnias. The second time it was all of the above. Either bunnies or squirrels have taken away the plants. I was hoping that marigolds might discourage them but NO, those disappeared as well. Oddly, this is the only location where this is happening in the backyard. There are flowers in other areas. Suggestions? Is enclosing the area with chicken wire or something like that the only option? Help! Thanks.
That is very strange. Unfortunately, without seeing signs of the culprit, we could only guess.
For now, these articles will help:
https://www.gardeningknowhow.com/plant-problems/pests/animals
I am a novice when it comes to caring for plants, but I love their beauty. What caused this plant's leaves to spot?
Getting the plants wet for long periods of time when fungal spores are present in the planting area is enough and would promotes development of leaf spots in zinnias as well as other plants. Clean sanitation practices and anything that makes the fungi "uncomfortable" will help minimize the chances of getting these infections. Not enough info was given to classify the leaf spots. Possibilities: alternaria leaf spot or cercospora leaf spot. I have seen some copper fungicides for cercospora useful on hydrangeas, like Bonide Liquid Copper Fungicide RTU Spray.
how to save it. Is it over-watered or not watered enough? Please help
It is probably overwatered. When plants are in a big pot it is easy to overwater because there is so much soil that stays wet. Try replacing the soil and repotting in a smaller pot if one is available. If not, replace soil and only water when the soil is dry and do not saturate the whole container.
If it is inside, it will do better outside.
I am planting in full sun with a south exposure.
Zinnias and cosmos are wonderful for attracting butterflies and other pollinators. Depending on the varieties, there could be a big height difference, so determine the mature heights before planting. The distance between will also depend on the varieties chosen, but they both have the potential to spread width-wise, so 2 feet should be ample.
https://www.gardeningknowhow.com/ornamental/flowers/zinnia/growing-zinnia-flowers.htm
https://www.gardeningknowhow.com/ornamental/flowers/cosmos/growing-cosmos.htm
Hi, I dealt with this problem midway into summer last year with a new garden I planted. It dominated my Zinnias and dahlias and then the 4’oclocks got hit with it. I pick off the infected leaves but I’m left with nearly nothing afterwards:( I spray neem oil at least 1x per week (& hit underside of leaves). My plants are spaced as they should be with room to breathe and right now no plant touches another in the garden. I water from the bottom close to ground. I used a copper fungicide last year as well but it still kept coming. What is this and how do I get rid of? It spreads like crazy. Lower leaves is where it seems to start or be the worst.
I believe that is spider mite damage, rather than fungal. Since the Neem oil isn't working you might try a miticide.
https://www.gardeningknowhow.com/plant-problems/pests/insects/spider-mite-treatment.htm
. What can I do? I fed it Miracle grow but I think something is eating them.
Some of the main culprits are Japanese beetles, caterpillars, grasshoppers, slugs and snails. Here is what to do:
https://www.gardeningknowhow.com/plant-problems/pests/insects/holes-in-plant-leaves.htm
https://www.gardeningknowhow.com/plant-problems/pests/insects/skeletonized-plant-leaves.htm
1. How soon can you sow freshly harvested Zinnia seeds? or do I have to wait till next spring. 2. Can seeds be collected from cut Zinnia flowers once they have dried or do flowers have to be dried on the plant?
Seeds need to mature on the plant before they are harvested. Zinna seeds mature to black on dry flowerheads. They don't need any special cold treatment before planting the seeds, so you can plant them after harvesting if you have enough growing time left in the year before any cold spells. They are not frost hardy. Here is more:
https://www.gardeningknowhow.com/ornamental/flowers/zinnia/growing-zinnia-flowers.htm
https://www.gardeningknowhow.com/garden-how-to/propagation/seeds/seed-harvesting-in-autumn.htm