Which Soil Blocker Is Right For You?
Choosing the right soil blocker depends on what you're growing and how you like to work. Here's a simple guide to help you decide.
If you want to grow…
Small Seeds (Cut Flowers & Salads)
Use this block size: Small (27 × 27 × 37 mm)
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If you want to grow…
Medium to large seeds
Use this block size: Large (54 × 54 × 54 mm)
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If you want to grow…
Large plants or potting on
Use this block size: Extra Large (75× 75 × 75 mm)
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Block Size Guide
Small
27 x 27 x 27 mm
Best for smaller seeds
Ideal for high - volume sowing
Saves Space
Available in the Compact 36 and 112 Blocker
Best For:
Ammi
Daucus
Larkspur
Phlox
Celosia
Snapdragons
Amaranthus
Nigella
Lettuce
Radish
Statice
Lisianthus
Helichrysum
Foxgloves
Large
54 x 54 x 54 mm
Best for medium, large and fast growing seeds
Allows more time to grow before transplanting
Also great for cuttings
Available in the Compact 9 and 28 Blocker
Best For:
Sunflowers
Cosmos
Zinnias
Tomatoes
Peppers
Squash
Honesty
Peas
Beans
Aubergine
Cucumber
Sweetcorn
Nasturtium
Cuttings
Extra Large
75 x 75 x 75 mm
Pot on into these from smaller blocks
Best for Large Plants
Eliminates the need for pots
Available in the 15 Blocker
Want to know more about soil blocking?
The Potting On Plate
The potting on plate allows you to transfer seedlings from small blocks into extra large blocks—without disturbing the roots.
Continued plant growth
Less transplant shock
Roots continue to benefit from air pruning
Reduces plastic waste
Still not sure?
“I grow lots of flowers from seed” → Small blocks
“I grow a mix of flowers and veg” → Small + Large
“I want the simplest setup” → Large blocks
“I want a whole no-pot system” → Small + Potting Plate + Extra Large
Popular Starter Set
The complete pot-free system.
112 Soil Blocker (small block size)
15 Blocker (Extra Large Blocks)
Potting On Plate
Save money with the 112 Soil Blocker + 15 Blocker & Potting On Plate Bundle.
The 15 blocker & potting on plate is designed to take our smallest block size, into a 75 × 75 × 75 mm block, for continued growth and plant health.
You will recive:
112 Soil Blocker
Specifications
Block size: 27 × 27 × 37 mm
Number of blocks: 112
Blocker Footprint: 400 × 230 mm
15 Blocker & Potting On Plate Bundle
Specifications
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)
Not sure which soil blocker to choose? Read the guide here
Please Note
Pre-order item: Lead time of 3–4 weeks before shipping
This bundle will arrive in two shipments
International orders: Overseas customers may be responsible for local import duties. These are not included in the purchase price.