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B&Q£13.99Visit shop - Westland Gro-Sure Vermiculite 10L Seed Sowing & Potting Medium Moisture Retention Growing Media Bag
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Westland Gro-Sure Vermiculite is designed for home gardeners and professional growers looking to enhance seed germination and early root establishment. This premium-grade, heat-treated mineral acts as an effective soil conditioner that holds moisture and nutrients, providing a stable microclimate for delicate seedlings. While it is an exceptional additive for propagation and soil aeration, it should not be used as a standalone growing medium for mature plants, as it lacks the essential structural support required for established root systems.
| Brand | Westland |
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No, it is intended to be used as a soil conditioner or additive, not as a standalone growing medium for mature plants.
No, it is chemically inert and will not alter the pH or chemical balance of your compost.
Yes, it is a naturally occurring mineral that is safe for use in organic gardening practices.
For general soil conditioning, a ratio of 10% to 25% vermiculite to compost is usually sufficient for most gardening needs.
Yes, using it as a surface layer helps trap moisture and maintain consistent humidity levels around your seedlings.
While technically possible, it is not recommended to reuse vermiculite from previously used compost as it may harbor pathogens or lose its structure.
Adjust the ratio by reducing the amount of vermiculite and increasing the proportion of heavier potting compost.
Ensure you are not over-saturating the mix; vermiculite holds a high volume of water, so plants may require less frequent watering than usual.
Lightly dampen the vermiculite with a spray bottle before mixing it into your compost to suppress dust.
To use as a seed sowing medium, fill your seed tray with a mix of one part vermiculite to one part compost to ensure a light, fluffy texture. For existing pots, incorporate vermiculite by gently mixing it into the top two inches of the compost, ensuring it is evenly distributed.
