Start seeds and pot on seedlings efficiently with the Bloom & Gray 15 Soil Blocker & Potting On Plate Bundle. A simple system designed to help gardeners and growers raise strong, healthy plants with minimal waste.
The 15 Soil Blocker compresses your compost mix into 15 large, uniform soil blocks measuring 75 × 75 × 75 mm, providing ample space for seedlings to continue developing after their first stage of growth. The generous block size holds plenty of compost, helping blocks stay moist for longer — especially helpful during busy sowing and potting periods.
Paired with the Potting On Plate, this bundle makes it easy to transplant seedlings grown in smaller soil blocks into larger blocks without disturbing their roots. The 15 blocker + potting on plate is compatible with the compact 36 and the 112 soil blocks (27 × 27 × 37 mm blocks).
This potting-on method allows seedlings to move seamlessly from smaller propagation blocks into larger growing blocks, maintaining a continuous soil environment around the roots and avoiding the shock often caused by transplanting into plastic pots.
Like all soil blocking systems, this method promotes air pruning, a natural process where roots stop growing when they reach the edge of the block and become more fibrous instead. These dense, fibrous root systems lead to sturdy, transplant-ready plants without the root spirals commonly caused by plastic containers.
Ideal for growers using smaller blockers such as the 112 Soil Blocker or Compact 36 Soil Blocker, the 15 Soil Blocker & Potting On Plate Bundle creates an efficient step-up system for raising vegetables, flowers, and seedlings that benefit from an intermediate growing stage.
The 15 blocker can also be used on it’s own to create blocks for seeds that need a bit more room to grow.
Each Bloom & Gray tool is made in the UK from corrosion-resistant stainless steel and built for years of reliable use. The soil blocker includes replaceable silicone dibbles, while the potting on plate is designed to create consistent, perfectly placed holes in every block for fast and accurate potting on.
For a low-waste seed-starting setup, use your soil blocks in sturdy, reusable shallow trays that can be used season after season.
Specifications (what you’ll get)
15 Soil Blocker
- Block size: 75 × 75 × 75 mm
- Number of blocks: 15
- Material: Stainless steel
- Dibbles: Replaceable silicone
- Blocker footprint: 400 × 230 mm
Potting On Plate
- Stainless Steel
- 3D printed PETG inserts with brass fixings - 30 × 30 × 40 mm (PETG has better recyclability, durability, and lower carbon footprint compared to other 3D printing filaments)
Please Note
Pre-order item: Lead time of 3–4 weeks before shipping
International orders: Overseas customers may be responsible for local import duties. These are not included in the purchase price.
Start seeds and pot on seedlings efficiently with the Bloom & Gray 15 Soil Blocker & Potting On Plate Bundle. A simple system designed to help gardeners and growers raise strong, healthy plants with minimal waste.
The 15 Soil Blocker compresses your compost mix into 15 large, uniform soil blocks measuring 75 × 75 × 75 mm, providing ample space for seedlings to continue developing after their first stage of growth. The generous block size holds plenty of compost, helping blocks stay moist for longer — especially helpful during busy sowing and potting periods.
Paired with the Potting On Plate, this bundle makes it easy to transplant seedlings grown in smaller soil blocks into larger blocks without disturbing their roots. The 15 blocker + potting on plate is compatible with the compact 36 and the 112 soil blocks (27 × 27 × 37 mm blocks).
This potting-on method allows seedlings to move seamlessly from smaller propagation blocks into larger growing blocks, maintaining a continuous soil environment around the roots and avoiding the shock often caused by transplanting into plastic pots.
Like all soil blocking systems, this method promotes air pruning, a natural process where roots stop growing when they reach the edge of the block and become more fibrous instead. These dense, fibrous root systems lead to sturdy, transplant-ready plants without the root spirals commonly caused by plastic containers.
Ideal for growers using smaller blockers such as the 112 Soil Blocker or Compact 36 Soil Blocker, the 15 Soil Blocker & Potting On Plate Bundle creates an efficient step-up system for raising vegetables, flowers, and seedlings that benefit from an intermediate growing stage.
The 15 blocker can also be used on it’s own to create blocks for seeds that need a bit more room to grow.
Each Bloom & Gray tool is made in the UK from corrosion-resistant stainless steel and built for years of reliable use. The soil blocker includes replaceable silicone dibbles, while the potting on plate is designed to create consistent, perfectly placed holes in every block for fast and accurate potting on.
For a low-waste seed-starting setup, use your soil blocks in sturdy, reusable shallow trays that can be used season after season.
Specifications (what you’ll get)
15 Soil Blocker
- Block size: 75 × 75 × 75 mm
- Number of blocks: 15
- Material: Stainless steel
- Dibbles: Replaceable silicone
- Blocker footprint: 400 × 230 mm
Potting On Plate
- Stainless Steel
- 3D printed PETG inserts with brass fixings - 30 × 30 × 40 mm (PETG has better recyclability, durability, and lower carbon footprint compared to other 3D printing filaments)
Please Note
Pre-order item: Lead time of 3–4 weeks before shipping
International orders: Overseas customers may be responsible for local import duties. These are not included in the purchase price.
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