Jasmine plants are known for their star-shaped white flowers that burst forth from pink buds blooming primarily in late winter to early spring. A tropical vine, jasmine is a favorite plant to grow with its delicate white flowers set against glossy green leaves and an intoxicating scent. With a few basic steps, you will find that jasmine plants are relatively easy to care for and will reward you for many years to come with their beauty.
Keep your jasmine indoors from late fall through early spring. Indoor temperatures should be no more than 65 degrees F or it will not flower. Do not set your jasmine in direct sunlight while indoors. Little or no direct sunlight is needed to allow the plant to rest and get ready to bloom in late winter.
Place your jasmine away from wood stoves, radiators and hot-air vents which can dry it out. To maintain the proper humidity, line a seed tray 3/4 full of pebbles and half full of water, then set your jasmine on top of the pebbles in the tray. Do not let the water touch the bottom of the jasmine pot or the soil will soak up the water. If the soil becomes soggy it can kill your plant. Another option is to run a humidifier next to your plant to make sure it is humid enough.
Water your plant to keep the soil moist, but do not let it get too soggy. As a rule of thumb, water when the top 1/2 inch is dry to the touch. When your jasmine is outside for the summer, be sure the plant does not dry out, especially when the weather gets hotter and dryer.
Place your Jasmine plant in direct sunlight for at least six hours daily after it has bloomed and expose to normal room temperatures to get it acclimated to being placed outside for the summer. Once the danger of frost has passed, set your plant outdoors, first placing it in a shady to partially shady location, then slowly introducing it to full sun. Your jasmine plant can spend the summer months outside until the first frost.
Fertilize your jasmine every two to four weeks during the early spring through early fall. Use a high phosphorus water-soluble fertilizer, 15-30-15, to encourage blooming. Use about half the recommended amount; over-fertilizing can kill your plant.
Prune your plant to control the shape and size, but do not prune after August when jasmine begins to set flower buds for next season. Simply pinch of the ends of the plant to help it maintain a bushy appearance.
Keep your plant outside for four to five weeks once nighttime temperatures begin to drop to 40 to 50 degrees F in the early fall. Jasmine needs cooler nighttime temperatures and plenty of sunlight during the day to encourage formation of flower buds for the following season. Do not give your plant artificial lighting at this time.
Bring indoors before the first frost and place in an area that has cool temperatures of no more than 65 degrees F and indirect light as discussed in steps 1 through 3.