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4.6|12 reviews

lava grit 20 kg

Improves soil structure and naturally feeds your garden.

  • Improved soil structure: boosts drainage and loosens compacted soil
  • Special composition: unique 50/50 mix with deep-burrowing worms
  • Great for: gardens and lawns

€19.51

In stock

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Shipped within 1-3 days (NL)
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4.8 rating on Google
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Description

Discount Table Lava Grit

Number of bags (20 kg)
Price per bag
Total price

  • 1 bag
    € 19.51
    € 19.51

  • 8 bags
    € 17.00
    € 136.00

  • 50 bags
    € 15.43
    € 771.50

Do not store the bags in direct sunlight to prevent damage and dust formation.

From 7 bags onwards, lava grit is delivered on a pallet via DHL. Delivery takes place between 8:00 and 18:00.
If you are not at home, you may place a note on your door with delivery instructions.

The pallet is delivered using a pallet truck, allowing placement on a paved surface. For delivery on unpaved ground, a forklift is required — please contact us in advance.

Use

Lava grit improves soil quality and is rich in trace elements, replenishing essential minerals in the soil. It is suitable for vegetable gardens, lawns, ornamental gardens, and potted plants.

Due to its coarse structure, lava grit is absorbed slowly: approximately 1/3 in the first year and 2/3 in the following years. This makes it ideal for planting trees and shrubs.

Lava grit can be used all year round and can be combined with worm compost and other products from Franky’s Flora.

Benefits

  • Rich in minerals – Essential for healthy plants and fertile soil

  • Improves soil structure – Creates airy, water-retentive soil and supports strong root growth

  • Reduces moss and strengthens lawns – Increases soil pH

  • Long-lasting nutrition – Ideal for spring and autumn fertilization

  • Stimulates soil life – Supports beneficial microorganisms and humus formation

  • Sustainable and natural – 100% chemical-free and suitable for organic use (cat. 2)

Dosage Lava Grit per m²

Application

Dosage per m²

Vegetable garden

250–500 g

Lawn

250–500 g

Ornamental garden

100–200 g

Potting soil

10–50 g per 10 liters

Horsetail control

500–1000 g

Application Tips

  • Frequency: Can be applied year-round. For fast results, an initial dose of 500 g per m² is recommended.

  • Horsetail control: Horsetail thrives in mineral-poor soils. Lava grit replenishes minerals and raises soil pH, reducing growth.

  • Combination: Can be perfectly combined with worm compost or mealworm compost.

Ingredients & recipe

Lava grit rich in trace elements and minerals.

How to use it
  • Vegetable garden and lawn: 250–500 grams per m².
  • Ornamental garden: 100–200 grams per m².
  • Potting soil: 10–50 grams per 10 litres.
  • Suitable for year-round use; 500 grams per m² is stated as the initial dose for a quick result.
  • Can be combined with worm castings or mealworm manure.
Technical details
  • Available product variants: 1

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Frequently asked questions

How much lava grit should I use on the lawn?

According to the dosage, use 250 to 500 grams per m² of lawn.

Can I mix lava grit into potting soil?

Yes, the stated dosage is 10 to 50 grams of lava grit per 10 litres of potting soil.

When can I apply lava grit?

Lava grit can be used all year round and its coarse structure releases its effect gradually.

What do customers think?

4.6

12 reviews

Showing 3 of 12 reviews