Agra Wool | Starter Blocks | 28mm Hole | Per Piece | 7.5x7.5x6.5cm
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Product information
Key specifications
- Dimensions
- 7.5 × 7.5 × 6.5 cm
- Width
- 8
- Material
- Basalt fibre
- Height
- 7
- Diameter
- 28 mm
Product description
Agra-Wool Starting Block - Loose Buy (7.5 × 7.5 × 6.5 cm, hole 28 mm)
Durable starting blocks for cuttings and seeds - Ecose® bonded, without formaldehyde
Why choose Agra-Wool (per block)?
- Environmentally conscious choice: bonded with Ecose® technology - formaldehyde-free and produced with sustainability in mind.
- Optimal root climate: excellent balance between water absorption and air circulation for fast, healthy rooting.
- Healthy fiber structure: roots experience little growth resistance, which supports resistance to diseases and pests.
- Easy to use: immediately usable; moistening with tap water is sufficient.
- Comfort in use: no skin irritation with normal use.
- Flexible: ideal for testing Agra-Wool first or for small breeding runs.
Specifications
| Dimension block | 7.5 × 7.5 × 6.5 cm |
|---|---|
| Planting hole | Ø 28 mm |
| Material | Basalt-based fiber block bonded with Ecose® technology (formaldehyde-free) |
| Application | Cuttings and seeds, indoor and outdoor, hobby and professional |
| Pretreatment | Wetting with tap water; slight EC preload present |
Use & cultivation advice
- Preparation: completely wet the block with tap water until evenly saturated. Thanks to the Ecose® binding, a light EC level is present; no nutrition is usually needed for the first week.
- pH tip (optional): Many growers use water with pH 5.5-6.0 for seedlings/cuttings. This is not a must, but can optimize the start.
- Planting: place seed or cutting in the 28 mm planting hole; provide light and heat appropriate to the crop.
- Moisten: keep the block moist but not soaking wet; ensure adequate air exchange around the root area.
- Advance & transplant: once roots are visible at the edges/bottom, move to a larger substrate or growing system.
Compatibility: excellent to combine with hydroponics, recirculation systems, drip irrigation and potting soil/coco as a follow-up step.
Main advantages
- Organic binder (Ecose®) - without formaldehyde
- Excellent growth performance due to optimal water/air balance
- Better rooting through healthy fiber structure
- Sustainable production choice; safe to use (no skin irritation)
Frequently Asked Questions
Should I pre-soak the block in food? Not necessary in the first week: due to the light EC preload, additional nutrients are usually unnecessary at this stage. What pH is ideal? Tap water works just fine. Those who cultivate extra precisely often use pH 5.5-6.0 during germination and starting phases. When to transplant? When roots are visible on the side/bottom and the plant is actively growing. Is Agra-Wool suitable for both hobby and professional use? Yes, starter blocks are widely used - from windowsill to nursery.Why order from Greendiscounter?
- Fast delivery and carefully packaged
- Friendly customer service with cultivation knowledge
- Sharp prices, even for small quantities
Pros and cons
- Pros: The substrate provides a user-friendly basis for a stable root environment
- Pros: The structure helps retain moisture and nutrients evenly around the roots
- Cons: The nutrients already present are depleted during cultivation so additional feeding may be needed later
- Cons: A full bag takes up relatively much storage space and is less suitable for very precise hydro control
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Technical specifications
- Dimensions
- 7.5 × 7.5 × 6.5 cm
- Width
- 8
- Material
- Basalt fibre
- Height
- 7
- Diameter
- 28 mm
- Main category
- Growing media & pots
- Subcategory
- Propagation supplies
- Brand
- Agra Wool
- Product type
- Stone wool starter blocks
- Length
- 8


