Description
BAC Lime Powder (Calcium) 5kg
BAC Lime Powder (Calcium) 5kg is a powerful substrate conditioner designed to rejuvenate and upgrade used soil and coco coir. Over time, growing media naturally becomes acidic and depleted of essential minerals, reducing nutrient uptake and limiting plant performance. BAC Lime helps restore balance by stabilising pH levels while replenishing vital calcium and magnesium.
Perfect for growers looking to reuse old substrates instead of throwing them away after every cycle, BAC Lime creates a healthier root zone and improves nutrient availability for stronger growth, healthier plants, and more productive harvests.
This easy-to-use powdered amendment is ideal for coco and soil growers who want a cost-effective and sustainable way to bring tired media back to life.
Why Use BAC Lime Powder?
- Corrects acidic soil and coco substrates
- Raises and stabilises low pH levels
- Improves nutrient uptake and nutrient availability
- Replenishes depleted calcium and magnesium
- Helps restore used growing media for reuse
- Supports stronger root development and healthier plants
- Ideal for sustainable and cost-effective growing
- Suitable for both coco coir and soil grows
Correct Acidic Soils & Improve Growing Conditions
Acidic substrates can severely reduce nutrient absorption and overall plant performance. BAC Lime helps raise substrate pH to create a healthier growing environment for roots, microbes, and nutrient uptake.
Different growing media react differently to pH correction:
- Clay Soils resist pH changes more heavily than other soil types, meaning larger amounts of lime may be required to increase pH levels effectively.
- Loamy Soils typically require less product than clay-based soils, as they do not resist pH changes as strongly.
- Sandy Soils generally require the least amount of lime due to their lower clay content and reduced buffering capacity.
By restoring pH stability, BAC Lime helps unlock nutrients already present in the medium, especially phosphorus and potassium, improving overall fertiliser efficiency and plant health.
How BAC Lime Works
Used soil and coco can become increasingly acidic after repeated feeding cycles. This can lead to nutrient lockout, weak growth, and poor root development. BAC Lime buffers the growing media and restores balance by adding high levels of calcium and magnesium.
Calcium is essential for cell wall strength, nutrient transport, and root development, while magnesium plays a crucial role in chlorophyll production and photosynthesis.
The result is a healthier substrate capable of supporting vigorous growth and better yields.
Application & Dosage
BAC Lime must always be mixed thoroughly through the growing medium before planting.
| Growing Medium | Dosage |
|---|---|
| Soil | 2g per litre of soil |
| Coco Coir | 1g per litre of coco |
Ensure the powder is evenly distributed throughout the substrate before planting. BAC Lime is not designed as a top dressing for established plants.
Ingredients
| Ingredient | Content |
|---|---|
| Calcium | 47% |
| Magnesium | 5% |
Best Used For
- Reusing old soil and coco
- Correcting acidic substrates
- Preparing growing media before planting
- Improving calcium availability
- Supporting microbial life in living soils
- Reducing nutrient lockout issues
Important Usage Information
BAC Lime is specifically designed for use in soil and coco coir substrates. It is not suitable for recirculating hydroponic systems such as DWC, NFT, or aeroponics because the powder does not fully dissolve and may block irrigation equipment.
Compatible BAC Nutrients & Additives
If you're running the full BAC range, BAC Lime works perfectly alongside these products:
Base Nutrients
Additives & Boosters
- BAC Amino Complex
- BAC F1 Extreme Booster
- BAC Calmag 2.0
- BAC Silica Power
- BAC Root Stim
- BAC Bloom Stim
- BAC Final Solution
- BAC Frooting Power
BAC Feed Schedules
Frequently Asked Questions
Why should I add lime to reused soil or coco?
After a grow cycle, substrates often become acidic and lose key minerals like calcium and magnesium. BAC Lime restores balance, improves pH stability, and helps prepare the media for another successful crop.
Can BAC Lime be used in hydroponic systems?
No. BAC Lime is intended for soil and coco applications only and should not be used in recirculating hydroponic systems.
When should I apply BAC Lime?
BAC Lime should be mixed into the growing medium before planting to properly stabilise the substrate.
Can I use BAC Lime with other nutrients?
Yes. BAC Lime actually improves the effectiveness of your nutrient programme by creating a healthier pH range for nutrient uptake.
Available in 5kg.
