Jasmine plants---or vines---come in many varieties and can grow in both warm and cool climates. Despite the different varieties, there is some general care that applies to them all. While jasmines need little care to survive, with a just a little bit of attention, they can thrive.
Prune the plant down to the ground after blooming if your jasmine plant becomes infested with spider mites, and throw the cuttings away. Spider mites usually only occur with winter jasmine, but it is something you need to watch out for on all jasmine plants. The vine will grow again the following year.
Apply fertilizer in the spring to Confederate jasmine if you notice yellowing leaves. Generally, use one pound of balanced fertilizer labeled 10-10-10. All other jasmines do not need fertilizers.
Prune jasmine plants back after flowering, which is a general rule for all jasmine plants. Thin them out and cut them back several feet. The next year, the plants will grow fuller, while not growing out of control.
Water jasmine plants every week or so during the first couple of years (in the growing season only) when the plants are not well established. Thereafter, only water during long dry spells in the growing season.
Give indoor jasmine plants, which are usually sub-tropical varieties, at least 4 hours of sunlight (sunny window is best) or 14 to 16 hours of artificial light. Ideally, temperatures for those kind of jasmines should be 68 to 72 degrees F in the day and 50 to 55 degrees F at night.