Jasmine grows as a perennial in U.S. Department of Agriculture growing zones 7 through 9, but frost kills the plant in cooler regions. The hardy jasmine varieties, such as star jasmine, prefer temperatures of higher than 40 degrees Fahrenheit and survive light frosts, but the tropical varieties begin to suffer when temperatures dip below 50 degrees Fahrenheit. The flowers on these shrubs can be enjoyed year-round by growing them in pots and overwintering them indoors.
Things You'll Need
- Water soluble houseplant food
Bring potted jasmine indoors before the first fall frost and before nighttime temperatures drop to less than 55 degrees Fahrenheit.
Set the plants in a room where they receive little or light and where temperatures remain between 40 and 50 degrees Fahrenheit. An unheated basement storage room or a garage where temperatures remain above freezing is ideal.
Remove the fallen leaves from the potting soil so that insects or disease organisms don't nest in the dead foliage. The leaves yellow and drop as the jasmine plant enters dormancy.
Water the jasmine when the top 3 to 4 inches of soil in the pot feels dry. Provide only enough water so the soil doesn't dry completely, but don't thoroughly moisten the soil.
Move the jasmine to an area that receives bright, indirect sunlight in late winter. Gradually resume regular watering. Light and water signal the jasmine to resume growth.
Begin fertilizing the jasmine with a soluble houseplant food once new leaves begin growing on the branches. Apply the fertilizer once monthly at the rate recommended on the package.
Move the jasmine back outdoors after temperatures have risen to the preferred range and after all spring frost danger is past. Jasmine requires at least four weeks of indoor growing after breaking dormancy before being set outside.
Tips & Warnings
- In warmer climates, spread a 4-inch layer of straw mulch over the roots of outdoor-planted jasmine to protect them from any cold snaps.
- Jasmine requires repotting every one to two years, or when it begins to outgrow its old pots. Repot in late winter before regular watering and fertilization are resumed.