Spring is still several weeks away, but every sunny day in late winter reminds the gardener that planting season is near. In addition to starting new plants from seed, a great, thrifty way to multiply plants for your garden is to root houseplant cuttings indoors.
I prefer to root cuttings in water, in bright but indirect light. Cut off the tip of a stem with a sharp, clean knife or scissors, strip off the bottom 2-3 leaves, and place in a jar of tepid water. There should be at least 3 leaves remaining on the cutting. In a few days to a week or so, small roots will develop along the stem at the leaf nodules which are under water. At this point the plant can be potted in soil, or can remain in fresh water as the roots continue to grow.
After danger of frost is past in your area, the cuttings can be planted outside. Be aware of the normal light requirements of the plant -- many houseplants can't tolerate direct southern or western sunlight outdoors. I typically use my cuttings as filler for blooming container plants. Wandering Jew (Zebrina Pendula) is probably my favorite. It grows prolifically in an eastern or northern exposure in my Zone 6 garden. At the end of the growing season I just whack off a bunch of cuttings to root in water over winter for the following spring. They are all offspring of a single cutting I was given almost ten years ago.
Other plants which root easily in water are: Begonias (but not the tuberous types), Bougainvillea, Coleus, English-, Grape- or Swedish-Ivy, Moses-In-The-Cradle (Rhoeo), Vining Philodendron, Pothos, Purple Passion Plant and Spider Plant (babies). Using cuttings of houseplants in outdoor containers and beds not only saves money, but creates variety in your plantings. Happy Gardening!
--Susan Rodebush © 2009
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