Agra Wool | Hydroponic Blocks | 38mm Hole | 224pcs | 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
- 38 mm
Product description
Agra-Wool Starting Blocks - Box 224 pieces (7.5 × 7.5 × 6.5 cm, hole 38 mm)
Professional batch for uniform rearing - Ecose® bound, consistent quality
Benefits of the box (224 pieces)
- Consistency in one cultivation round: uniform block size and water management for predictable results.
- Efficient & scalable: ideal for nurseries, seed-runs and serious hobby growers.
- Cost-conscious: attractive unit price with bulk purchase.
- Sustainable choice: Ecose® binding, formaldehyde-free; safe for user and environment.
- Rapid rooting: healthy fiber structure with low growth resistance at the root tips.
Specifications
| Number per box | 224 units |
|---|---|
| Block size | 7.5 × 7.5 × 6.5 cm |
| Planting hole | Ø 38 mm |
| Material & binding | Basalt fiber block, bonded with Ecose® technology (without formaldehyde) |
| Pretreatment | Slight EC precharge; moistening with tap water is sufficient for the start |
| Application | Propagation of cuttings and seeds; usable in hydroponics, recirculation, drip, or as an intermediate step to potting soil/coco |
| Storage advice | Store dry and dust-free; keep boxes closed until use for maximum uniformity |
Uniform work protocol (recommended)
- Wetting: saturate the blocks evenly with tap water. Drain excess water.
- pH & EC (pro-tip): optional water pH 5.5-6.0; built-in light EC usually eliminates the need for supplemental fertilization in Week 1.
- Place: stab or sow in the 38 mm planting hole. Keep temperature/VP-D and light intensity appropriate to the crop.
- Manage moisture/oxygen: keep blocks moist, but avoid persistent saturation; this keeps pores of air available for roots.
- Scale up: transplant as soon as roots are visible - to larger blocks, pots or the final substrate/cultivation system.
Quality & performance
- Better rooting: fine, branched roots colonize the block quickly.
- Stable microclimate: fiber matrix retains water while ventilating for strong starter growth.
- Safe and comfortable: pleasant to handle, no skin irritation with normal use.
Frequently Asked Questions
Can I use the blocks in an automation line? Yes, the uniform size (7.5 × 7.5 × 6.5 cm) is suitable for trays, tables and simple mechanization. Should I flush the blocks? Not required. Moistening with tap water is sufficient. Many professional growers additionally choose pH 5.5-6.0 water. Which crops are suitable? General use for vegetable, herb and ornamental crops in the propagation stage. What is the best bulk storage method? Store dry, dust-free and unopened until use to ensure uniformity.Why order bulk at Greendiscounter?
- Sharp discount prices and reliable stock indication
- Fast shipping in sturdy outer boxes
- Customer advice from growers for growers
Pros and cons
- Pros: The growing medium provides a clear basis for an orderly root zone
- Pros: The version with dimensions of 7.5x7.5x6.5cm makes the size clear in advance
- Cons: A suitable watering and feeding strategy remain necessary for an even result
- Cons: Check in advance whether the size and use suit the chosen growing method
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Technical specifications
- Dimensions
- 7.5 × 7.5 × 6.5 cm
- Width
- 8
- Material
- Basalt fibre
- Height
- 7
- Diameter
- 38 mm
- Main category
- Growing media & pots
- Subcategory
- Propagation supplies
- Brand
- Agra Wool
- Product type
- Stone wool starter blocks
- Length
- 8


