As long as jasmine is properly cared for, it will grace your home with a tropical explosion of long-lasting, sweet-smelling pink or white blooms in mid-winter. With its shiny, deep green foliage that will climb up a small trellis or trail gracefully over the side of a container, jasmine continues to be a delightful houseplant even after the blooms have faded.
Place your jasmine plant in a warm room where it will get direct sunlight for at least six hours every day. Keep the plant away from drafts, heat vents, fireplaces and air conditioners.
Water jasmine when the top of the potting soil is dry to the touch, but never water so much that the potting soil is soggy.
Although jasmine doesn't like wet soil, it will do better in a humid environment. To increase the humidity around the plant, set the plant in a dish of pebbles. Add water to the dish, keeping it below the top of the pebbles so it doesn't come in contact with the bottom of the pot.
Fertilize jasmine every other week during spring and summer, using a water-soluble houseplant fertilizer. Apply the fertilizer according to the directions on the package, except dilute it to half-strength. Stop fertilizing in early fall, and don't resume until after the jasmine is done blooming in mid-winter or early spring.
Move jasmine into a cool room in early autumn, and leave it for 4 to 5 weeks so it can develop blooms. Keep the room's temperature at 65 degrees F. or a little less. Place the jasmine in bright light, but never in direct sunlight. Keep the room dark during the night, with no artificial light. Alternately, place the plant on a sheltered patio during this time, but only if the outside temperature never drops below 40 degrees F. Water the jasmine sparingly.
Return the jasmine plant to bright light and normal temperatures when it develops blooms. Resume normal watering.
Prune jasmine as needed to maintain a pleasant shape or to control size, but never prune jasmine after August 1, when the plant begins forming buds. Insert a small trellis into the pot to give the jasmine something to climb on, if desired.