Plagron Lemon Kick Organic pH Down Regulator
Plagron Lemon Kick Organic pH Down Regulator
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Order by 3pm Mon–Thu for next-working-day delivery · FREE delivery over £50 · Free Wembley pickup
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Bring pH Down Without Wrecking Your Soil Life
Plagron Lemon Kick is an organic pH regulator made from water and citric acid that pulls nutrient water down to the ideal range of 5.5 - 6.5. Phosphoric and nitric acids do the same job but kill off soil biology and shift your NPK in the process. Lemon Kick does neither, and it does not influence the EC value, so what you read in the tank is what the plant gets.
Key Benefits
- Up to three times as effective as other pH regulators, so less product moves the same amount of water
- No effect on EC – adjust pH without your feed strength drifting
- Leaves NPK untouched, unlike phosphoric or nitric acid
- Safe for soil life, which matters if you are running an organic or living-soil programme
- Safer to handle than pH Plus and pH Min
- Suitable for all watering systems, from hand watering to recirculating tanks
Why Won’t Your Plants Take Up What You Feed Them?
Only a nutrient solution at the correct pH is absorbed in the right proportions. Drift outside 5.5 - 6.5 and specific elements lock out, which reads as slow growth, weak roots and poor nutrient uptake even though the tank is full of feed. Correcting pH has a stimulating effect on the plant’s metabolism, and with an organic regulator you get that without sterilising the medium underneath.
How to Use
- Shake well before use every time
- Dose in steps of 0.5 ml per litre of water (1:2000), measuring the pH as you go
- Target pH 5.5 - 6.5 depending on your medium and system
- Go slowly – Lemon Kick has a strong effect and must be added step by step, never all at once
- Order of mixing: add nutrients and additives first, then adjust pH last
- All systems: suitable for hand watering, drippers and recirculating setups
Technical Specifications
- Type: Organic pH down regulator
- Composition: Water, citric acid
- Target pH: 5.5 - 6.5
- Dosing step: 0.5 ml per litre (1:2000)
- Effect on EC: None
- Effect on NPK: None
- Suitable for: All watering systems

Free next-day delivery on orders over £50 (order by 3pm Mon–Thu). Heavy-item surcharges are always shown at checkout before you pay — we only ever charge what delivery costs us. Prefer to collect? Free pickup at our Wembley store.