Seep Plug – Advanced Growing Media for Plant Propagation

Seep Plug is an innovative growing media developed for modern plant propagation. Made from a combination of water, polymer, and coconut material, it provides an ideal balance between moisture retention and air circulation, supporting healthy and stable root development.

Compared to traditional substrates, Seep Plug offers consistent structure and uniform quality, allowing growers to achieve better control over plant growth. Its sponge-like texture helps retain water efficiently while maintaining sufficient oxygen levels around the roots.

Seep Plug is suitable for a wide range of applications, including orchid seedlings, tissue culture plants, and various horticultural crops. It is designed to improve transplant success rate, reduce water stress, and enhance overall plant performance.

With stable production and customizable sizes, Seep Plug supports commercial growers looking for reliable and scalable propagation solutions.

"Seep Plug" Innovation & Quality Improvement

Gan Lin’s proprietary Seep Plug™ system enhances root development and improves production performance.

30% Stronger Root Development

60%+ Reduction in Labor Requirement

Reduce Material Costs by 15% or More

20% Faster Growth Performance

60%

Labor cost: savings or more


30%

Root development: stronger, improving uniformity and survival

20%

Growth speed: faster or more

Moss vs Seep Plug

In side-by-side comparisons, Phalaenopsis grown in Seep Plug show faster vegetative growth, stronger root systems, and more uniform development compared to plants grown in traditional moss.


Seep Plug provides a more stable growing environment, allowing growers to achieve faster production cycles and more consistent plant quality compared to traditional media.

Moss

Seep Plug

Drag

Compatible with standard pot sizes such as TW 1.7", TW 2.5", and TW 3.6"

Seep Plug is available in three sizes to support different growing stages. Each size is designed to match standard nursery systems and is compatible with common pot sizes such as TW 1.7", TW 2.5", and TW 3.6".

Small Size (TW 1.7")

Ideal for early-stage propagation


  • Suitable for tissue culture plants and young seedlings

  • Promotes early root initiation

  • Efficient for high-density propagation systems

  • Easy handling in early production stages

Medium Size (TW 2.5")

Balanced solution for nursery growth


  • Suitable for general nursery production

  • Supports stable root development

  • Ideal for mid-stage plant growth

  • Good balance between growth space and efficiency

Large Size (TW 3.6")

Designed for transplant-ready plants


  • Provides more space for strong root expansion

  • Suitable for advanced growth stage

  • Improves transplant success rate

  • Ideal for plants closer to finishing or potting stage

Versatile Applications Across Different Crops

Seep Plug is designed for a wide range of plant types and growing systems, providing a stable and efficient propagation solution for both horticultural and commercial applications.

Substrate Performance Comparison


A clear comparison of substrate performance—covering aeration, stability, automation compatibility, and transplant efficiency—to help growers select the most reliable system for consistent, high-quality orchid production.

Seep Plug

Seep Plug is an engineered, fully standardized substrate system designed for automation, delivering a stable 50:50 air–water balance, maintaining structural integrity for over 24 months, and improving transplant efficiency by up to 60% with minimal root disturbance.

Bark

Bark is a natural substrate with good initial aeration, but its structure gradually degrades over time, offering only semi-automation compatibility and causing moderate root disturbance during transplanting.

Sphagnum Moss


Sphagnum moss is a traditional substrate with high water retention but prone to over-saturation, offering limited structural stability over time and requiring manual handling with a higher risk of root disturbance during transplanting.

Compared to traditional growing media, Seep Plug provides a more stable and controlled environment for plant propagation. Its balanced structure helps growers improve consistency, reduce plant stress, and achieve better production results.

Contact Us

Looking for a reliable propagation solution?

Get in touch with us today to learn more about Seep Plug and how it can support your production.


Our team is ready to assist you with product details, sizing options, and application recommendations based on your needs.