HESI Hydro Growth bottles in multiple sizes on a white background

HESI Hydro Growth 1 L bottle on a white background

HESI Hydro Growth 5 L bottle on a white background

HESI Hydro Growth

Hydro feed
For water-based or inert growing methods
pH/EC check needed

A one-part mineral nutrient for plants grown in water-based systems, LECA and passive semi-hydro. HESI Hydro Growth keeps semi-hydro feeding simpler than A+B nutrients while still giving a complete growth feed. Pair it with pH and EC checks for best results in reservoirs.

Quick facts

Type: Hydro base fertilizer
Substrates: Hydro, Passive semi-hydro, LECA, and Inert media
Dosage: 50 ml/10 L
Frequency: Reservoir changes
Skill level: Beginner to intermediate
pH/EC: Required

€11,25

VAT included · plus

Please note: Most fertilizers ship separately from plants. A separate shipping fee may apply, and the final cost is calculated at checkout by order weight. Free shipping does not apply.

Size:

1 L 5 L 10 L 20 L

Variant

4.6/5 store rating · 20,000+ customers served

Tracked shipping

HESI Hydro Growth is the simpler HESI route for plants grown without a feeding soil. It suits LECA, hydro and passive semi-hydro setups where the nutrient solution carries the food.

For roots in inert media

It is a cleaner match than stretching soil fertilizer into clay pebbles or other inert substrates. The product keeps the HESI route simpler than a full two-part system while staying firmly hydro-focused.

Best for measured reservoirs

This is a good fit when water quality and reservoir refreshes are already part of your care rhythm. Soil-grown plants are usually better served by TNT Complex or HousePlant Elixir.

Is it right for your plant?

Substrate HydroPassive semi-hydroLECAInert media
Best for Foliage plantsSemi-hydro plantsHydro setups
Helps with Active growthRegular feeding
Choose another product for Soil-first feedingFlowering hydro feeding

HESI Hydro Growth is a strong fit for hydroponic houseplants, passive semi-hydro and LECA setups that need a direct one-part grow feed. Use it for foliage plants in active growth where the medium itself supplies little or no nutrition.

For soil pots, HESI HousePlant Elixir or TNT Complex is usually the better match.

What's inside:

NPK Ratio: NPK 3-2-4 + secondary nutrients, chelated trace elements, vitamins and amino acids
Nutrient basis: Mineral

HESI Hydro Growth is a one-part mineral base feed for hydro, LECA and other inert-media setups. It supplies the nutrient profile that the substrate itself cannot provide.

The formula is NPK 3-2-4 with secondary nutrients, chelated trace elements, vitamins and amino acids. Use it as the main growth feed for hydro-style care, with pH and EC checks where needed.

How to use it

Mix 50 ml with 10 L of water for the standard hydro growth solution. After dilution, check pH and EC before the solution goes into a reservoir or semi-hydro cachepot.

Refresh passive reservoirs regularly so old solution does not build up indefinitely.

➜ A few notes before measuring, mixing or applying :

Keep reservoir pH and EC in range; plain visual dosing is not enough in hydro. Clean cachepots and inner pots when residue appears so roots stay oxygenated.

Never mix this concentrate directly with other undiluted fertilizers.

HESI Hydro Growth

€11,25

Frequently Asked Questions about HESI Hydro Growth

Is HESI Hydro Growth suitable for LECA and semi-hydro?

Yes. It is made for hydroponic houseplants, passive semi-hydro and LECA setups where the medium itself provides little or no nutrition.

Is HESI Hydro Growth a complete fertilizer?

Yes. It has NPK 3-2-4 plus secondary nutrients, chelated trace elements, vitamins and amino acids, so it can be the main growth feed in hydro-style systems.

How should I use HESI Hydro Growth in a reservoir?

Mix 50 ml into 10 L of water, then check pH and EC before adding it to the reservoir. Refresh passive reservoirs regularly instead of only topping up old nutrient water.

Epipremnum aureum cutting, LECA, self-watering pot, water level indicator, and bottle of liquid fertilizer laid out separately on white background

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