Spider plants, Chlorophytum comosum, are typically propagated from plantlets (also known as "spiderettes") that grow on long stems. The reference provided discusses planting these spiderettes, not tubers. Therefore, the question is slightly misleading because spider plants are propagated from plantlets, not tubers. Assuming you meant, "How to plant Spider Plant Plantlets?" here's the process:
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Sever the Plantlet: Using clean, sterile pruning shears or scissors, carefully cut the plantlet from the stem of the mother plant.
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Prepare the Plantlet: Inspect the base of the plantlet where it was connected to the stem. Remove any leaves that might sit below the water line when you place the plantlet in water. This prevents rotting.
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Rooting in Water (Preferred Method):
- Fill a small container with clean water.
- Place the base of the plantlet in the water, ensuring the leaves remain above the water level.
- Place the container in a location with bright, indirect light.
- Change the water every few days to keep it fresh.
- Wait for roots to develop. This usually takes a few weeks.
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Potting in Soil: Once the roots are 2 to 3 inches long, the plantlet is ready to be transplanted into soil.
- Choose a small pot with drainage holes.
- Fill the pot with well-draining potting mix.
- Make a small hole in the soil.
- Gently remove the plantlet from the water and place it in the hole.
- Carefully cover the roots with soil.
- Water thoroughly.
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Caring for the New Plant:
- Keep the soil consistently moist, but not soggy, for the first few weeks.
- Place the newly potted plant in bright, indirect light.
- Once established, care for it as you would a mature spider plant, allowing the soil to dry slightly between waterings.
While spider plants don't technically grow from tubers, this method allows you to easily propagate new plants from the spiderettes that are produced. If you have a different type of plant with tubers you'd like help planting, please provide more information!