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Sponge & Rock Wool Starter Plugs for Hydroponic Seed Propagation

Sponge & Rock Wool Starter Plugs for Hydroponic Seed Propagation

Regular price $12.65 USD
Regular price $2.65 USD Sale price $12.65 USD
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Product Features:

  • Efficient Germination Medium – Designed for fast root development and high seedling success rates, ideal for hydroponic systems and traditional soil-based setups.
  • Dual Material Options – Available in sponge plugs and rock wool cubes, both known for excellent water retention and airflow—giving seeds the best start.
  • Perfect for Cuttings & Seeds – Great for germinating herbs, vegetables, flowers, and cloning plant cuttings in controlled environments.
  • Clean & Easy to Use – Pre-formed planting holes ensure simple seed placement and minimal mess—ideal for both beginners and experienced growers.
  • Widely Compatible – Suitable for hydroponic trays, net pots, and seedling starter kits. Ideal for indoor gardening, greenhouses, and commercial grow setups.

Specifications:

  • Material: Sponge / Rock Wool (varies by selection)
  • Use: Seed germination, plant propagation, hydroponics
  • Set Type: Yes – available in packs of various quantities
  • Origin: Mainland China
  • Chemical Concern: None
  • What’s Included:
    • A selected set of Sponge or Rock Wool Starter Cubes (choose quantity and type)


Kickstart your seedlings the right way with these high-performance starter plugs. Made from sponge or rock wool, they offer optimal moisture retention and aeration—essential for strong root growth in both hydroponic and soil gardens. Whether you're propagating herbs, vegetables, or flowers, these cubes simplify plant propagation with clean, consistent results.

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