Archive for the ‘Poinsettia’ Category

Photoperiodism – Short Day/Long Day Plants

“Photoperiodism” or daylength is responsible for triggering flowering in numerous plants. Some examples of short day plants are poinsettias (Euphorbia pulcherrima), fall mums (Dendranthemum spp.), asters (Symphyotrichum spp.), Thanksgiving (Schlumbergera truncata), Christmas (S. bridgesii) cacti, Kalanchoes (Kalanchoe spp.) and Salvias (Salvia spp.). “Photoperiodism” is the amount of light and darkness a plant is exposed to. The […]

Buy This Poinsettia, Perhaps Not That One!

There are so many colorful poinsettia varieties in stores this holiday season. Some plants will not make it to the first of the year. What attracts you into buying the plant is the colorful bracts (modified leaves). The “true” poinsettia flowers lie in the center of the bracts. If the yellow stamens are immature or […]

New Poinsettia Varieties Make Your Holidays Bright

                          Poinsettia is a gift which keeps on giving. Many gardeners save and nurture their plant to  re-bloom again over the next winter holiday season. By early February the plant has likely dropped most of its bottom leaves and flower bracts. Cut back the bare stems by two-thirds […]

Steps in Re-Blooming Last Year’s Poinsettia

Part IV. In mid-September bring plant indoors as outdoor temps start to drop below 50°F to initiate poinsettia flowering. Poinsettia is a “photoperiodic” plant, which means that floral buds and colorful bracts are initiated under short daylengths. A poinsettia requires 6 weeks of 10 hours or less of light per day. You must be determined to stay with […]

Re-Blooming Your Poinsettia: Winter thru Summer Care

Part III:  By late January your poinsettia plant may look droopy and the leaves pale green. Some flowers (colorful bracts) and leaves may have dropped. To revive the plant and to program it to flower again next winter requires additional care from you starting now. Move the plant to an east or south exposure window, […]