I would like to know more about the types of fertilizer compost (for jasmine flowers) and how to use it for good yield. I have jasmine flowers few rose flowers garden how to grow to get more healthy flowers.
I would recommend that you look for "bloom booster" fertilizers. These fertilizers are higher in phosphorous (middle NPK number) which will help the plants have more blossoms.
Each fall I bring in my Jasmine plant. In October I replanted it and pruned back the plant. However, the leaves have been dropping off since fall. The plant is not dead, as it has some leaves and also blossoms. I cannot figure out what happened. It is a vine type plant. I live in northern Ohio. It sits near my patio door.
Either there is a draft that is hitting the plant, which is possible near a door; or the humidity levels are too low, which happens in heated homes a lot and with this winter being rather cold, it will be drier than it has been in past years; or when you repotted, a space was left in the soil.
Check for drafts, place the pot on a tray of pebbles filled with water to raise the humidity and tamp the soil down well to collapse any spaces that might be in the soil.
Can black spot disease be passed from a rose to a jasmine plant and kill it?
It could transfer from one plant to the other. Roses tend to be more susceptible, but a jasmine could get fungus from the rose. If you suspect your roses have it and you want to make very sure that the jasmine does not get it, start treating the jasmine with a fungicide. We are personally fond of neem oil for this. This article will tell you more about it: https://www.gardeningknowhow.com/plant-problems/pests/pesticides/neem-oil-uses.htm
I have a Jasmine plant that I keep indoors. It is not blooming and the bottom leaves are turning yellow. What am I doing wrong?
It could be a few things. Most common are too little light, too little water and too little phosphorus. Check that they get at least 5 hours of light, because they are in containers, water 1-2 times a day and give them some bone meal to help with any phosphorus deficiency. This article may help with the yellowing issue: https://www.gardeningknowhow.com/plant-problems/environmental/plant-leaves-turn-yellow.htm
I have a Trachelospermum jasminoides. I have had it about 4 years and each summer many leaves turn red, then brown and fall off. New growth is okay and plenty of blooms. I have tried feeding it with Maxicrop extract of seaweed plus, but it has not improved. I would be grateful for any advice.
Some trachelospermum species' leaves turn red as they get older, so long as you've got healthy new growth coming on, it should be okay.
I have star jasmine climbing up ugly walls and last summer the leaves started to look as if they were variegated. The leaves developed white spots all over them and the problem spread. I want to make sure I combat the problem before next spring when there will be a lot of new growth. What do you suggest I spray on it so I can have glossy green leaves as I used to have. I look forward to your advice in treatment. I would prefer a homemade remedy, if possible.
Are the spots powdery in nature or simply 'bleached' looking? It could be powdery mildew or water spots. At any rate, you can treat the plant with neem oil, which should take care of any fungal or pest issues. Here is more information: https://www.gardeningknowhow.com/plant-problems/pests/pesticides/neem-oil-uses.htm
I brought a jasmine plant up to Connecticut from South Carolina. It has been on my deck all summer. Can I leave it out during winter? It is in a 15 inch pot.
It will not survive the winter outside in Connecticut. You will need to bring it indoors for the winter.