Vitax Coarse Grit - 20kg

Coarse Grit is a multi-functional garden staple that is essential for improving the structure and ...

Best current price£11.79from B&Q

All Offers

4 offers from £11.79 - £18.62

View price history by clicking the chart icon.

B&QB&Q - Horticultural Coarse Grit 20Kg Bag
Free delivery in 1–3 days
£11.79
Visit shop
OnBuy.comVitax Coarse Grit Approx. 20Kg
Free delivery in 1–3 days
£14.99
Visit shop
eBayVitax Coarse Grit Approx. 20kg Bag
Free delivery in 1–3 days
£17.70
Visit shop

Product Information

Full details

The Vitax Coarse Grit is an essential tool for gardeners managing heavy, clay-based soil who need to improve drainage and soil structure. Ideal for both beginners and experienced horticulturists, this 20kg bag provides a versatile, pH-neutral solution for amending compost, stabilizing potted plants, or finishing rock gardens. While it is highly effective for drainage, users should be aware that the 20kg weight can be physically demanding to transport and store in smaller spaces.

All features

BrandVitax

Extended Product Information

FAQs

Is Vitax Coarse Grit safe for use with all plants?

Yes, it is lime-free and pH neutral, making it safe for a wide variety of plants, including alpines, succulents, and crops.

Can I use this for my garden pond?

Absolutely. The grit is washed and clean, making it suitable for aquatic planting and pond environments.

Will this change the pH level of my soil?

No, the grit is chemically inert and pH neutral, so it will not interfere with the acidity or alkalinity of your soil.

How do I store the remaining grit?

Keep the bag in a dry, cool place. If the bag is torn, transfer the grit into a durable plastic bin or bucket.

Can I mix this with regular potting compost?

Yes, mixing it with standard compost is the most effective way to improve drainage for moisture-sensitive plants.

Troubleshooting

Water still pooling in pots after adding grit

Ensure the drainage holes at the bottom of the pot are not obstructed and consider increasing the ratio of grit to compost for better flow.

Grit feels dusty or cloudy when added to water

Although the product is washed, rinsing the grit in a fine mesh sieve before adding it to delicate aquatic setups can remove any residual surface dust.

Pros and Cons

Pros

  • pH neutral and lime-free for safe plant usage
  • Effectively improves drainage in heavy, compacted soils
  • Versatile application for cacti, alpines, and aquatic plants
  • Clean, washed grit prevents muddy residue
  • Adds essential stability to tall or lightweight plant containers

Cons

  • Heavy 20kg bag can be difficult to move without assistance
  • Limited coverage area compared to lighter soil amendments
  • Not suitable for plants that require acidic or specific soil-less environments
  • Requires significant physical mixing effort when working with large volumes of soil

Setup, Compatibility & Care

To integrate this product into your garden, simply mix it with your existing compost at a ratio appropriate for your specific plant's needs; cacti and succulents typically benefit from a 1:3 ratio of grit to compost. Because the grit is lime-free and washed, it is compatible with most acid-loving plants, provided the surrounding soil conditions are monitored. Store the bag in a dry location to prevent the grit from becoming compacted or dirty during storage. When handling, wear gardening gloves to protect your hands from the coarse texture of the material.

Price History

DatePrice
Visit shop