|Problems with star jasmine. Most of these are caused by poor soil conditions and winter cold. Perhaps it might be not watered with enough water.|
A. The easiest is to not plant it. Hard to say exactly but generally I would call the problems in general, stress. The stress could have come from freezing temperatures, lack of water, poor soil or poor soil amendments such as high salts and lack of organic matter.
|Great place to put a star jasmine for aroma and welcome greetings to visitors.|
The plant is some eastern and southern China and which means it is not from a desert and not really a desert plant. We have to adjust everything around it for that reason. It is not going to like desert soils or rock mulch for that reason.
|Star jasmine used as groundcover in rock mulch. I guarantee that plant HATES it there. Developed iron chlorosis due to rock mulch and poor soils.|
Soils must have lots of rich soil amendment (compost) and it will really appreciate wood mulches. It does well as a groundcover but I think it is best as a north or east-facing trellised vine. Particularly near a window that can be opened in the Spring.
|When star jasmine is growing well and in good health the leaves should be a vibrant green.|
The flowers are very fragrant so it should be planted in locations where the fragrance can be appreciated. It is an old-fashioned plant. Southerners might know it by the name “Confederate jasmine”.
It handles the cold winters well if it is not in rock mulch. At real low temperatures the leaves may get that bronzy, yellowish color that plant leaves can get when it is cold but will handle temperatures to 10F pretty easily. Citrus leaves will bronze in winter the same way.
Flood the soil with water to remove possible salts and let it drain. Add compost to the soil surface around it and water it in. Replace rock mulch with wood mulch but keep the mulch away from the stems to prevent collar rot.
Fertilize in the spring with a good quality fertilizer for flowering plants like roses. Shear off the old growth and let it regrow in good health. One time I had to cut a star jasmine used as a vine way back to get it to flower for me in a north exposure.