Zeolite

What is it?

Zeolite is a porous mineral with a strong ability to hold water and positively charged nutrients. It is used in substrates to add moisture retention and nutrient-holding capacity.

💧Water retention -

💨Aeration -

🚿Drainage -

⚖️Weight -

🧪Nutrient holding -

🌿Organic -

High

Depends on size

Depends on size

Medium-High

Very High

No

What does it do?

✅Best use for:

Everywhere if used visely!

🔬LOPOLISBIOTECH observations

  • Holds significant amounts of moisture

  • Holds positively charged nutrients

  • Can help buffer nutrient availability

  • Adds mineral structure to a substrate

  • Remains stable without organic decomposition

  • Can behave very differently depending on particle size

Particle size matters - ~5–8 mm zeolite worked very well for Monstera deliciosa, including smaller plants, but softer-rooted plants such as Monkey Mask and other Philodendrons did not tolerate this fraction as well.

Strong nutrient holding - Zeolite can buffer nutrients effectively. This was useful while we were developing our fertilizer approach, but later became harder to manage.

💡 Key point: Zeolite is powerful precisely because of its nutrient-holding capacity — but that can also make nutrient management more complicated.

Species respond differently - We observed both underfeeding and overfeeding symptoms depending on the plant, despite using the same zeolite-based setup.

Our conclusion - Excellent supporting material, but we prefer not to use it as the main structural component because its strong nutrient-holding properties can make feeding less predictable.