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Poinsettia Plant Harvesting:
Optimal Time and Technique

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Updated: July 9, 2023

Poinsettias are a favorite plant during the holiday season, known for their vibrant red and green foliage that adds a pop of color to any indoor or outdoor space. Many people enjoy giving or receiving poinsettias as gifts, but what happens after the holiday season is over? Can poinsettias be harvested and kept alive for future use? In this article, we will explore the optimal time and technique for harvesting poinsettia plants.

Understanding the Poinsettia Lifecycle

Before diving into the harvesting process, it’s important to understand the lifecycle of a poinsettia plant. Poinsettias are native to Mexico and are highly adapted to tropical climates. In their natural habitat, they can grow up to 10 feet tall.

The colorful bracts that we associate with poinsettias are actually modified leaves, while the true flowers are small and yellow in the center of the bracts. Poinsettias are short-day plants, meaning they require long periods of darkness to trigger flowering. This is why they are often associated with the holiday season, as their natural blooming time coincides with shorter daylight hours.

Harvesting Poinsettias

Timing

The optimal time for harvesting poinsettias depends on your desired outcome. If you wish to keep the plant alive and encourage it to bloom again next year, it’s best to wait until after the holiday season before attempting to harvest.

Typically, poinsettias start losing their vibrant colors in late winter or early spring. This is when you can prune them back in preparation for new growth. However, if you don’t mind sacrificing the plant’s future blooming potential, you can harvest poinsettias at any time during their lifecycle.

Technique

To successfully harvest a poinsettia plant, follow these steps:

  1. Prepare your tools: Gather a clean, sharp pair of pruning shears or scissors, gloves, and a clean container with water.

  2. Choose the stems: Look for healthy stems that are at least 6 to 8 inches long. Avoid stems that are weak, damaged, or diseased.

  3. Cut the stems: Using your pruning shears or scissors, make a clean cut just below a leaf node. A leaf node is where a leaf attaches to the stem. This is where new growth will emerge.

  4. Remove lower leaves: Strip off the lower leaves from the stem, leaving only a few near the top. This helps prevent water loss and encourages new growth.

  5. Place in water: Immediately after cutting, place the stems in a container filled with water. This will prevent air bubbles from forming in the stem and allow the plant to continue taking up water.

  6. Optional: Dip in rooting hormone: If you want to increase your chances of successful rooting, you can dip the cut end of the stem in a rooting hormone powder or gel before placing it in water. This can help stimulate root development.

  7. Choose a growing medium: Once your poinsettia stems have developed roots, you can transfer them to a suitable growing medium such as potting soil or a well-draining mix.

  8. Provide proper care: To ensure successful transplanting, keep your newly harvested poinsettias in a warm and humid environment with bright, indirect light. Water them regularly, but avoid overwatering as this can lead to rotting.

Regrowing Poinsettias

If you wish to regrow your harvested poinsettias for next year’s holiday season, follow these additional steps:

  1. Control light exposure: Starting around early October, poinsettias require 14 hours of uninterrupted darkness each day for about 8 to 10 weeks. This mimics their natural blooming cycle and encourages bract development.

  2. Provide regular care: During this period, continue to care for your poinsettias as you would any houseplant. Water them regularly, ensure proper drainage, and fertilize with a balanced houseplant fertilizer according to the instructions.

  3. Resume normal light exposure: After the 8 to 10 week dark period, you can gradually reintroduce your poinsettias to normal daylight hours. Place them in a sunny location and continue providing proper care.

  4. Enjoy the blooms: With proper care, your harvested poinsettias should start producing their vibrant bracts just in time for the holiday season.

Conclusion

Harvesting poinsettias allows you to extend the life of these beautiful plants beyond the holiday season. By understanding the optimal time and technique for harvesting, as well as the necessary care for regrowth, you can enjoy the colorful blooms of poinsettias year after year. Whether you choose to keep them as houseplants or give them as gifts, poinsettias are sure to bring joy and festive cheer to any space.

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