Start Poinsettia Around the End of September... Re-Blooming Your Poinsettia - When the holidays are over and your Poinsettia starts to decline, it is best to add it to the compost pile. If you can't bring yourself to toss it or you just enjoy a challenge, you might want to try re-blooming Euphorbia for the next holiday season. Cut stems back to just above a leaf node, about 3 to 4 inches high. Place the plant out of the sun and allow potting soil to dry between watering. When new growth starts to appear, you can begin monthly feeding. As a note, never feed or fertilize a potted plant when the soil is dry, always water first, then feed. Beginning around the end of September you will need to carefully control the light your Poinsettia receives. The plant will need to be kept in total darkness for 14 hours every night , continuing daily (or nightly) for 8 weeks. You can cover with black plastic and place in a dark area, returning it to its normal location during the day. After ...
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