Best Grit For Plants of 2025

Last updated on 17/10/2025
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Most Relevant
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1
Horticultural Potting Grit 25kg Bag – Ideal Garden Mix for Potting, Alpines & Drainage | Alpine, Potting Mix by Jamieson Brothers
Horticultural Potting Grit 25kg Bag – Ideal Garden Mix for Potting, Alpines & Drainage | Alpine, Potting Mix by Jamieson Brothers
Jamieson Brothers
Why we love it
  • Improves soil and plant health.
  • Versatile and multi-purpose use.
  • Legacy of established brand.
Main Highlights
  • SUITABLE PLANTS AND USES AROUND THE GARDEN: Many garden plants such as Cacti, succulents, alpines don't enjoy wet conditions or roots. When added to potting compost, this horticultural grit creates a more open structure that prevents water logging.
  • WHERE TO USE POTTING GRIT: Jamieson Brothers Potting Grit is ideal for mixing with compost or soil to provide extra drainage and open up the structure. It's also great for creating a decorative finish on pots, containers, rockeries, ponds, aquariums and alpine plantings. It is graded very fine 1-6mm grit. Improves drainage and helps open up structure.
  • WHAT IS HORTICULTURAL POTTING GRIT: Horticultural Potting Grit is very fine and is suitable for horticultural use within many garden projects. It is ideal for breaking up heavy soils or composts, this products also helps drainage in beds and borders. Horticultural Potting Grit is also suitable for top dressing pots, troughs and planters.
  • HOW TO USE HORTICULTURAL POTTING GRIT: Many gardeners dig over the soil and incorporate the horticultural potting grit that way. The small size of the horticultural grit then creates air holes so that water can drain through the soil more efficiently. This is also a great aid for root growth as the roots now have room to expand and develop.
  • When starting seeds in trays or pots, a thin layer of grit aids drainage and reduces the risk of damping off. Use for germination success and healthier seedlings. Suitable for both indoor and outdoor plants, this fine alpine grit is ideal for potting mixes, succulents, and container gardening. Helps maintain structure and keeps soil breathable.
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9.8
Exceptional
9.8
Exceptional
Jamieson Brothers
Horticultural Potting Grit 25kg Bag – Ideal Garden Mix for Potting, Alpines & Drainage | Alpine, Potting Mix by Jamieson Brothers
Why we love it
  • Improves soil and plant health.
  • Versatile and multi-purpose use.
  • Legacy of established brand.
Main Highlights
  • SUITABLE PLANTS AND USES AROUND THE GARDEN: Many garden plants such as Cacti, succulents, alpines don't enjoy wet conditions or roots. When added to potting compost, this horticultural grit creates a more open structure that prevents water logging.
  • WHERE TO USE POTTING GRIT: Jamieson Brothers Potting Grit is ideal for mixing with compost or soil to provide extra drainage and open up the structure. It's also great for creating a decorative finish on pots, containers, rockeries, ponds, aquariums and alpine plantings. It is graded very fine 1-6mm grit. Improves drainage and helps open up structure.
  • WHAT IS HORTICULTURAL POTTING GRIT: Horticultural Potting Grit is very fine and is suitable for horticultural use within many garden projects. It is ideal for breaking up heavy soils or composts, this products also helps drainage in beds and borders. Horticultural Potting Grit is also suitable for top dressing pots, troughs and planters.
  • HOW TO USE HORTICULTURAL POTTING GRIT: Many gardeners dig over the soil and incorporate the horticultural potting grit that way. The small size of the horticultural grit then creates air holes so that water can drain through the soil more efficiently. This is also a great aid for root growth as the roots now have room to expand and develop.
  • When starting seeds in trays or pots, a thin layer of grit aids drainage and reduces the risk of damping off. Use for germination success and healthier seedlings. Suitable for both indoor and outdoor plants, this fine alpine grit is ideal for potting mixes, succulents, and container gardening. Helps maintain structure and keeps soil breathable.
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Value for Money
2
Suregreen Melcourt Horticultural Coarse Grit | 20kg Bag for Gardening, Potting & Soil Drainage | Washed Aggregate for Outdoor Pots, Beds, Planting & Compost Mixes
Suregreen Melcourt Horticultural Coarse Grit | 20kg Bag for Gardening, Potting & Soil Drainage | Washed Aggregate for Outdoor Pots, Beds, Planting & Compost Mixes
Suregreen
Why we love it
  • Ideal for plant drainage.
  • Attractive decorative top dressing.
  • Guaranteed lime-free and washed.
Main Highlights
  • Premium Horticultural Grit – Ideal for improving drainage and aeration in composts and soils. Perfect for use in potting mixes, seed sowing, and general gardening applications.
  • Versatile Grit for Plants – Use as potting grit for outdoor pots, coarse sand for plants, or garden grit to support healthy root development and prevent waterlogging.
  • Multi-Purpose Grit Sand – Suitable for horticultural and agricultural use. This eco grit is washed and graded, making it safe and effective for a wide range of planting needs.
  • Convenient Bag of Grit – Supplied in a durable 20kg bag, this grit is easy to store and apply. Ideal for gardeners looking for reliable bags of grit for long-term use.
  • Trusted by Professionals – Whether you're using it as agricultural grit, patio filler, or decorative garden grit, this product delivers consistent quality for all your gardening and landscaping projects.
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9.8
Exceptional
9.8
Exceptional
Suregreen
Suregreen Melcourt Horticultural Coarse Grit | 20kg Bag for Gardening, Potting & Soil Drainage | Washed Aggregate for Outdoor Pots, Beds, Planting & Compost Mixes
Why we love it
  • Ideal for plant drainage.
  • Attractive decorative top dressing.
  • Guaranteed lime-free and washed.
Main Highlights
  • Premium Horticultural Grit – Ideal for improving drainage and aeration in composts and soils. Perfect for use in potting mixes, seed sowing, and general gardening applications.
  • Versatile Grit for Plants – Use as potting grit for outdoor pots, coarse sand for plants, or garden grit to support healthy root development and prevent waterlogging.
  • Multi-Purpose Grit Sand – Suitable for horticultural and agricultural use. This eco grit is washed and graded, making it safe and effective for a wide range of planting needs.
  • Convenient Bag of Grit – Supplied in a durable 20kg bag, this grit is easy to store and apply. Ideal for gardeners looking for reliable bags of grit for long-term use.
  • Trusted by Professionals – Whether you're using it as agricultural grit, patio filler, or decorative garden grit, this product delivers consistent quality for all your gardening and landscaping projects.
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3
Melcourt Horticultural Potting Grit, 20kg
Melcourt Horticultural Potting Grit, 20kg
Melcourt
Why we love it
  • Eco-friendly and sustainable.
  • Promotes healthier plant growth.
  • Endorses natural gardening techniques.
Main Highlights
  • For alpines and cacti
  • Can be used as a top dressing for pots
  • Ideal for incorporating into compost to improve drainage
  • A very fine grit with a nominal particle size 1-4mm
  • Washed
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9.7
Exceptional
9.7
Exceptional
Melcourt
Melcourt Horticultural Potting Grit, 20kg
Why we love it
  • Eco-friendly and sustainable.
  • Promotes healthier plant growth.
  • Endorses natural gardening techniques.
Main Highlights
  • For alpines and cacti
  • Can be used as a top dressing for pots
  • Ideal for incorporating into compost to improve drainage
  • A very fine grit with a nominal particle size 1-4mm
  • Washed
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4
Suregreen Melcourt Horticultural Potting Grit | 20kg | Washed Lime-Free Fine Grit | 1–4mm | Cacti, Succulents, Alpines, Soil Drainage & Compost Mix
Suregreen Melcourt Horticultural Potting Grit | 20kg | Washed Lime-Free Fine Grit | 1–4mm | Cacti, Succulents, Alpines, Soil Drainage & Compost Mix
Suregreen
Why we love it
  • Improves drainage for specific plants.
  • Professional packaging ensures safe delivery.
  • Supplies washed, lime-free fine grit.
Main Highlights
  • Potting grit is commonly used for cacti, succulents and alpines for incorporating into composts and soils to help improve drainage
  • Packed professionally in additional strong bags to ensure the product is delivered without issue
  • A very fine grit with a nominal particle size 1-4mm which is supplied washed and lime-free
  • Packed professionally in additional bags to ensure the product is delivered without issue
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9.5
Superb
9.5
Superb
Suregreen
Suregreen Melcourt Horticultural Potting Grit | 20kg | Washed Lime-Free Fine Grit | 1–4mm | Cacti, Succulents, Alpines, Soil Drainage & Compost Mix
Why we love it
  • Improves drainage for specific plants.
  • Professional packaging ensures safe delivery.
  • Supplies washed, lime-free fine grit.
Main Highlights
  • Potting grit is commonly used for cacti, succulents and alpines for incorporating into composts and soils to help improve drainage
  • Packed professionally in additional strong bags to ensure the product is delivered without issue
  • A very fine grit with a nominal particle size 1-4mm which is supplied washed and lime-free
  • Packed professionally in additional bags to ensure the product is delivered without issue
Show More
5
Horticultural Potting Grit Multipurpose Fine Grit For Top Dressing, Mixing in Compost and Improving Drainage For Alpine, Cacti & Succulents 1 x 20kg Bag by Thompson and Morgan
Horticultural Potting Grit Multipurpose Fine Grit For Top Dressing, Mixing in Compost and Improving Drainage For Alpine, Cacti & Succulents 1 x 20kg Bag by Thompson and Morgan
Thompson & Morgan
Why we love it
  • Improves soil drainage and aeration.
  • Versatile for various plant types.
  • Eases watering with efficient drainage.
Main Highlights
  • Fine grit ideal for improving drainage and aeration in soil.
  • Perfect for use with Alpine, Cacti, and Succulent plants.
  • Enhances soil structure, making it easier for water to drain in heavy soils.
  • Easy to mix with compost or other growing mediums for versatile use.
  • 1 x 20Kg Bag.
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9.3
Superb
9.3
Superb
Thompson & Morgan
Horticultural Potting Grit Multipurpose Fine Grit For Top Dressing, Mixing in Compost and Improving Drainage For Alpine, Cacti & Succulents 1 x 20kg Bag by Thompson and Morgan
Why we love it
  • Improves soil drainage and aeration.
  • Versatile for various plant types.
  • Eases watering with efficient drainage.
Main Highlights
  • Fine grit ideal for improving drainage and aeration in soil.
  • Perfect for use with Alpine, Cacti, and Succulent plants.
  • Enhances soil structure, making it easier for water to drain in heavy soils.
  • Easy to mix with compost or other growing mediums for versatile use.
  • 1 x 20Kg Bag.
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6
Westland Potting Grit, 20kg
Westland Potting Grit, 20kg
westland
Why we love it
  • Improves soil with better drainage.
  • Adds aesthetic touch to containers.
  • Provides stability to pots.
Main Highlights
  • Washed & graded 2-4mm grit
  • Improves drainage & opens up structure
  • Decorative finish for pots, containers & rockeries
  • Adds weight to pots & containers
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9.1
Superb
9.1
Superb
westland
Westland Potting Grit, 20kg
Why we love it
  • Improves soil with better drainage.
  • Adds aesthetic touch to containers.
  • Provides stability to pots.
Main Highlights
  • Washed & graded 2-4mm grit
  • Improves drainage & opens up structure
  • Decorative finish for pots, containers & rockeries
  • Adds weight to pots & containers
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7
Indigo Garden Potting Grit, 20kg
Indigo Garden Potting Grit, 20kg
indigo
Why we love it
  • Enhances plant root growth.
  • Promotes sustainable gardening.
  • Provides ample supply.
Main Highlights
  • Durable Grit: Made from recycled glass, this sharp grit provides excellent drainage for plant roots while resisting compaction over time.
  • Ideal Drainage: The angular texture of the grit allows for water and air to easily flow through soil mixes for healthy root growth.
  • Acid-Free Composition: Containing no limestone, the grit will not raise soil pH levels, making it a versatile additive for most plant varieties.
  • Generous Quantity: This 20kg bag contains an ample supply of grit to improve drainage in many potted containers and garden beds.
  • Reusable Resource: By using recycled glass material, this grit promotes sustainable gardening and reduces waste sent to landfills.
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9.0
Superb
9.0
Superb
indigo
Indigo Garden Potting Grit, 20kg
Why we love it
  • Enhances plant root growth.
  • Promotes sustainable gardening.
  • Provides ample supply.
Main Highlights
  • Durable Grit: Made from recycled glass, this sharp grit provides excellent drainage for plant roots while resisting compaction over time.
  • Ideal Drainage: The angular texture of the grit allows for water and air to easily flow through soil mixes for healthy root growth.
  • Acid-Free Composition: Containing no limestone, the grit will not raise soil pH levels, making it a versatile additive for most plant varieties.
  • Generous Quantity: This 20kg bag contains an ample supply of grit to improve drainage in many potted containers and garden beds.
  • Reusable Resource: By using recycled glass material, this grit promotes sustainable gardening and reduces waste sent to landfills.
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8
VItax Horticultural Potting Grit - Large - approx. 20kg
VItax Horticultural Potting Grit - Large - approx. 20kg
Vitax Ltd
Why we love it
  • Improves drainage for healthier plants.
  • Ideal for succulents and cacti.
  • Stabilizes plant pots and containers.
Main Highlights
  • Lime free Horticultural Potting Grit
  • Lime free Horticultural Potting Grit
  • Provides extra drainage when added to compost
  • Perfect for succulents, alpines and cacti
  • Can be used to weigh down plant pots and containers
  • Perfect for a top dressing for newly planted pation and ornamental plants
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8.8
Excellent
8.8
Excellent
Vitax Ltd
VItax Horticultural Potting Grit - Large - approx. 20kg
Why we love it
  • Improves drainage for healthier plants.
  • Ideal for succulents and cacti.
  • Stabilizes plant pots and containers.
Main Highlights
  • Lime free Horticultural Potting Grit
  • Lime free Horticultural Potting Grit
  • Provides extra drainage when added to compost
  • Perfect for succulents, alpines and cacti
  • Can be used to weigh down plant pots and containers
  • Perfect for a top dressing for newly planted pation and ornamental plants
Show More
9
Leca Horticultural Grit, Clay Pebbles, Lava rock like, Fine Grade 2-4mm 1L (3L)
Leca Horticultural Grit, Clay Pebbles, Lava rock like, Fine Grade 2-4mm 1L (3L)
bhomescent
Free Shipping
Why we love it
  • Versatile for various gardening needs.
  • Enhances growth and drainage.
  • Ideal for creative projects.
Main Highlights
  • Ground Cover & Pot Topping: Provides free-draining ground cover and pot topping. Ideal for low-growing alpines and herbs. Creates a quick-draining "collar" for moisture-sensitive plants. Discourages moss and lichen growth on the surface.
  • Flowering Bulbs: Enhances drainage in proprietary composts. Perfect for spring and summer flowering bulbs. Improves growing medium by adding a 1:2 ratio of grit to compost. Creates an attractive top dressing for bulbs.
  • Seeds & Cuttings: Sterile and pH-neutral for seed and cutting planting. Honeycomb structure warms up quickly, aiding germination. Provides insulation for vulnerable seedlings.
  • In the Garden: Excellent insulating properties for plunge beds. Protects potted plants from winter frost. Prevents overheating of plants in plastic pots during summer. Aerates soil and aids surface and deep drainage.
  • Terrariums, Bottle Gardens, and Vivariums: Ideal free-draining gravel substrate. Enhances soil conditions in open and closed glass containers. Lightweight drainage layer in vivariums.
  • Ideal for film set dressing, photographic shoots, and art installations. Filler/extender for lightweight, sound, and heat insulating backing coats.
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8.8
Excellent
8.8
Excellent
bhomescent
Leca Horticultural Grit, Clay Pebbles, Lava rock like, Fine Grade 2-4mm 1L (3L)
Free Shipping
Why we love it
  • Versatile for various gardening needs.
  • Enhances growth and drainage.
  • Ideal for creative projects.
Main Highlights
  • Ground Cover & Pot Topping: Provides free-draining ground cover and pot topping. Ideal for low-growing alpines and herbs. Creates a quick-draining "collar" for moisture-sensitive plants. Discourages moss and lichen growth on the surface.
  • Flowering Bulbs: Enhances drainage in proprietary composts. Perfect for spring and summer flowering bulbs. Improves growing medium by adding a 1:2 ratio of grit to compost. Creates an attractive top dressing for bulbs.
  • Seeds & Cuttings: Sterile and pH-neutral for seed and cutting planting. Honeycomb structure warms up quickly, aiding germination. Provides insulation for vulnerable seedlings.
  • In the Garden: Excellent insulating properties for plunge beds. Protects potted plants from winter frost. Prevents overheating of plants in plastic pots during summer. Aerates soil and aids surface and deep drainage.
  • Terrariums, Bottle Gardens, and Vivariums: Ideal free-draining gravel substrate. Enhances soil conditions in open and closed glass containers. Lightweight drainage layer in vivariums.
  • Ideal for film set dressing, photographic shoots, and art installations. Filler/extender for lightweight, sound, and heat insulating backing coats.
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10
Deco-Pak Horticultural Potting Grit 6mm, SOIL, Large 20KG
Deco-Pak Horticultural Potting Grit 6mm, SOIL, Large 20KG
Deco-Pak
Why we love it
  • Perfect for soil drainage.
  • High-quality, trusted brand.
  • Bulk 20KG for value.
Main Highlights
  • Horticultural Potting Grit 6mm
  • Product type: SOIL
  • Brand: Deco-Pak
  • Size: Large - 20KG
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8.8
Excellent
8.8
Excellent
Deco-Pak
Deco-Pak Horticultural Potting Grit 6mm, SOIL, Large 20KG
Why we love it
  • Perfect for soil drainage.
  • High-quality, trusted brand.
  • Bulk 20KG for value.
Main Highlights
  • Horticultural Potting Grit 6mm
  • Product type: SOIL
  • Brand: Deco-Pak
  • Size: Large - 20KG
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