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- Grodan Delta 5.6 Block 3x3x4 4240
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Item #:
13520842
Grodan Delta 5.6 Block 3x3x4 4240
Item #:
13520842
AUD 48
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In stock
Imported from USA store
QTY:
Order now and get it around Wednesday, August 26
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Grodan Blocks are the most uniform blocks available, featuring improved grooves for better drainage and supporting all types of plants.
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What Stands Out
Optimal Growth Medium
Grodan Delta blocks provide a finely tuned environment for plant roots, ensuring optimal moisture and aeration, which fosters healthy growth and maximizes yields.
Easy to Handle
Designed in a conveniently manageable size, these blocks simplify planting and transplanting processes, making them ideal for both novice and experienced gardeners.
Sustainable Solution
Made from renewable stone wool, Grodan Delta blocks offer an environmentally friendly option, promoting sustainability while supporting efficient crop production.
Product Details
| Package Dimensions | 25.1 x 6.7 x 4.3 inches (63.8 x 17 x 10.9 cm) |
| Item Weight | 8.8 ounces (249.48 grams) |
| Manufacturer | Grodan |
Who Should Buy?
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Commercial Growers
Ideal for large-scale agricultural operations seeking efficient water and nutrient management in controlled environments.
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Hydroponic Enthusiasts
Perfect for individuals using hydroponic setups looking for reliable and effective growth media alternatives.
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Indoor Gardeners
Great for indoor horticulturists needing a consistent and stable growth medium for high-quality crop production.
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Home Gardeners
May be excessive for casual gardeners requiring less specialized media for their basic plant needs.
Product Description
Grodan Delta 5.6 Block 3x3x4 4240
Have any Query? Chat with us
Customer Questions & Answers
-
Question:
What is the Grodan Delta 5.6 Block and what are its benefits?
Answer: The Grodan Delta 5.6 Block is a high-performance growing medium designed specifically for horticulture. Its unique composition promotes healthy root development by providing excellent water retention and aeration. This makes it ideal for hydroponics and soil-less cultivation. The blocks can support a variety of plants, from vegetables to flowers, enhancing their growth potential and yield. -
Question:
What sizes does the Grodan Delta 5.6 Block come in?
Answer: The Grodan Delta 5.6 Block is available in multiple sizes, including the 3x3x4 configuration. This size provides a balance between root space and moisture retention, making it suitable for a wide array of plants. The specific 42/40 designation refers to the number of blocks per crop, ensuring that growers have the optimal quantity for their setups. -
Question:
How should Grodan Delta 5.6 Blocks be used in hydroponics?
Answer: When using Grodan Delta 5.6 Blocks in hydroponics, start by soaking them in water to ensure they are adequately hydrated. Once prepared, you can place seeds or seedlings directly into the blocks. The high water retention and excellent air permeability allow roots to access nutrients and oxygen efficiently, promoting vigorous growth and high yields. -
Question:
Can I reuse Grodan Delta 5.6 Blocks after the first planting?
Answer: While reuse of Grodan Delta 5.6 Blocks is possible, it’s recommended to use fresh blocks for each new planting cycle. This helps prevent diseases and ensures optimal growing conditions. If you choose to reuse, sterilizing the blocks between uses can minimize risks, although new blocks will provide better results in terms of plant health and productivity. -
Question:
What types of plants are best suited for Grodan Delta 5.6 Blocks?
Answer: Grodan Delta 5.6 Blocks are versatile and can support a variety of plants, including tomatoes, peppers, and herbs. Their excellent drainage and aeration characteristics make them particularly effective for high-demand crops in hydroponic systems. They are ideal for both beginners looking to explore hydroponics and experienced growers wanting consistent yields. -
Question:
Are Grodan Delta 5.6 Blocks suitable for organic farming?
Answer: Yes, Grodan Delta 5.6 Blocks can be used in organic farming systems, provided that they are paired with organic nutrient solutions. While the blocks themselves are made from rock wool, the growing environment can be adjusted to meet organic standards. This makes them a popular choice among organic producers looking for soilless cultivation methods. -
Question:
What is the optimal pH range for Grodan Delta 5.6 Blocks?
Answer: The optimal pH range for growing in Grodan Delta 5.6 Blocks is typically between 5.5 and 6.5. Maintaining this pH range ensures that nutrients are readily available to the plants. Regular monitoring and adjustments can help achieve a stable environment, promoting robust growth and minimizing nutrient deficiencies or toxicities. -
Question:
How do I prepare Grodan Delta 5.6 Blocks for planting?
Answer: To prepare Grodan Delta 5.6 Blocks for planting, first soak them in water until fully saturated. Afterward, you can either germinate seeds in the blocks or transplant seedlings into them. Proper preparation ensures that the blocks offer optimal moisture and nutrient access for the plants, leading to healthier growth. -
Question:
What nutrients should I use with Grodan Delta 5.6 Blocks?
Answer: When growing with Grodan Delta 5.6 Blocks, it’s essential to use a nutrient solution specially formulated for hydroponics. Nutrients should be adjusted based on the growth stage of the plants. Regularly testing the nutrient concentration can help tailor the feeding regimen, ensuring that plants receive the right nutrients at the right time for optimal growth. -
Question:
Where can I buy Grodan Delta 5.6 Block 3x3x4 42/40 in Australia?
Answer: You can purchase the Grodan Delta 5.6 Block 3x3x4 42/40 from Ubuy. They offer a wide selection of gardening and hydroponics supplies, ensuring you have access to high-quality growing mediums like the Grodan Delta blocks. Ubuy provides a user-friendly shopping experience and reliable service for your horticultural needs.
Grodan Fertilizers & Plant Food Editorial Review
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Chris
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“Promt delivery. Seems like a good product.”
22 July 2026 · via Trustpilot
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“It was the best service ever received by any company from my online shopping experience in the last 10yrs”
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“so easy to order delivery was way earlier than i expected”
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“Very impressed with the speed at which I received my package from the United States to Australia. Highly recommended.”
21-Jul-26 · via Trustpilot
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Jeannie
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“Very efficient service. Hassle-free. Excellent product. Have ordered several times.”
17-Jul-26 · via Trustpilot
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AUD 48
Order now and get it around Wednesday, August 26
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Features & Benefits
- Made from high-quality Grodan Stonewool for optimal plant health.
- Extensive water absorption while ensuring excellent oxygen retention.
- Multiple sizes allow for seamless growth transitions from cubes to blocks to slabs.
- Uniform blocks with improved drainage grooves for enhanced performance.
- Compatible with a variety of plants and growing methods.
- Ideal for both direct sowing and transplanting into traditional planters.
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