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Vermiculite for plants

Vermiculite is a versatile expanded mineral widely utilized in plant cultivation for its numerous benefits. Its excellent water retention and aeration properties make it an ideal addition to enhance substrate performance. Additionally, vermiculite proves to be highly adaptable across various types of crops.

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Vermiculite

What are the benefits of vermiculite for your plant cultivation?

Vermiculite offers significant advantages for plant cultivation. Its water retention capability supports healthy root growth by ensuring proper hydration of the substrate. Additionally, it enhances aeration, which allows for better gas exchange in the soil, fostering vigorous plant growth. As a lightweight and non-toxic material, it also prevents soil compaction.

Characteristics and properties of vermiculite as a substrate

Characteristics of vermiculite

Some characteristics of vermiculite that make it ideal for cultivation include:

  • Lightweight and expanded material: Facilitates handling and transportation, making it ideal for substrate mixes.
  • High water retention capacity: Allows for maintaining appropriate moisture levels for the roots for longer periods.
  • Good substrate aeration: Promotes optimal gas exchange, benefiting root growth.
  • Does not decompose or compact over time: Ensures durability in the substrate without losing its properties.
  • Toxin and contaminant-free: Safe for plants, environmentally friendly, and suitable for agricultural use.

Properties of vermiculite

  • Improves nutrient retention capacity: Helps plants access nutrients consistently.
  • Prevents excess moisture in roots: Avoids water saturation, protecting roots from rot.
  • Facilitates gas exchange in the substrate: Ensures roots breathe properly, promoting their development.
  • Ecological and 100% natural: Environmentally friendly and sustainable product.
  • Compatible with other substrates: Easily mixes with materials like coco, perlite, and peat to enhance performance.

Use of vermiculite in hydroponics

Vermiculite is a popular choice in hydroponics due to its water and nutrient retention capabilities. It is used as a growing medium in hydroponic systems, either alone or combined with other substrates, such as perlite. Its use ensures that plants always have access to an adequate amount of water and nutrients without compacting the substrate, allowing a continuous flow of oxygen to the roots. Additionally, it helps prevent rapid drying of the substrate in open systems.

What substrates can vermiculite be mixed with?

Vermiculite can be mixed with various substrates to improve their characteristics, optimizing both water retention and aeration.

  • Peat: Increases water retention capacity, creating a more stable and nutritious substrate.
  • Coco: Provides excellent aeration, preventing waterlogging and promoting root growth.
  • Perlite: Enhances drainage, helping to avoid compaction and maintaining a lightweight structure.
  • Sand: Adds extra drainage, reducing the risk of water accumulation in the substrate.
  • Compost: Enriched with organic matter, improves fertility and nutrient balance along with vermiculite.
  • Potting soil: Facilitates moisture control and prevents soil compaction, improving its structure.

What is the price of vermiculite?

The price of vermiculite can vary based on quantity. At Growbarato, we offer the following products:

ProductQuantityPrice
Vermiculite Boom Nutrients6L3.25€
Vermiculite nº2125L27€

FAQ about growing with vermiculite

What is the appropriate proportion of vermiculite in a substrate mix?

A common proportion is to mix 1 part vermiculite with 2 or 3 parts of another substrate, depending on the water retention needs of the crop.

Is it necessary to wash vermiculite before using it in cultivation?

It is not necessary to wash vermiculite before use, as it is sold pre-washed and ready for cultivation. However, in some hydroponic cases, some growers prefer to rinse it to remove any fine residual dust.

Does vermiculite alter the pH of the substrate?

Vermiculite is chemically neutral, so it does not alter the pH of the substrate. This makes it suitable for all types of plants and substrates without the risk of imbalance.

How long does vermiculite last in the substrate before degrading?

Vermiculite does not degrade or decompose over time, so it can last through several cultivation cycles without needing replacement. This makes it an economical and sustainable option for long-term cultivation.

Can vermiculite be reused after a cultivation cycle?

Yes, vermiculite can be reused after a cultivation cycle. However, it is recommended to disinfect and clean it thoroughly, especially if used in combination with other substrates or in hydroponics, to prevent pathogen proliferation or nutrient residue.

Is vermiculite suitable for all stages of plant growth?

Vermiculite is suitable for all stages of plant growth, from germination to flowering. Its ability to retain moisture makes it ideal for seeds and cuttings, and its aeration capacity is beneficial throughout the entire growth cycle.

How does vermiculite affect nutrient absorption in hydroponics?

In hydroponic systems, vermiculite acts as a buffer that retains and slowly releases nutrients. This ensures that plants have constant access to nutrients, avoiding sudden deficiencies.