When the temperatures begin to dip towards freezing, it’s time to bring most varieties of jasmine indoors. Jasmines are tropical plants native to warmer climates such as tropical Asia and parts of China. While cultivars such as common white jasmine (Jasminum officinale) and winter jasmine (Jasminum nudiflorum) are cold hardy, most jasmine can’t survive freezing temperatures. You can help your jasmine get through the winter by bringing it indoors. As a plant that normally grows outdoors, your jasmine needs special attention in order to live indoors through the winter.
Place the jasmine near a sunny window where it can get four hours of direct sunlight a day. If direct sunlight is not possible, set the jasmine under strong artificial light for 14 to 16 hours a day.
Fill a tray, slightly larger than the jasmine’s pot, with pebbles. Add water to the tray until the water is just below the tops of the pebbles. Set the jasmine pot on top of the pebbles to help create the humid environment jasmines prefer.
Avoid letting the jasmine get too warm. During the winter months, jasmine prefer a daytime temperature of 68 to 72 degrees Fahrenheit and a nighttime temperature between 50 and 55 degrees.
Water the jasmine only when the soil is almost dry. When watering the jasmine, give it only enough water to moisten the soil. Jasmine do not like "soggy" feet.
Fill a spray bottle with distilled water. Spray the jasmine’s leaves once a week or more often if they appear dry. During winter, indoor air tends to be less humid and misting the leaves helps compensate for the dryness of the air.
Fertilize the jasmine monthly with a liquid high-potassium fertilizer. Apply the fertilizer according to manufacturer’s directions.
Common white jasmine (Jasminum officinale), winter jasmine (Jasminum nudiflorum) and Chinese jasmine (Jasminum polyanthum) all prefer cooler temperatures. Keep these jasmines in a cool area that stays near 50 degrees.