4 premium HESI nutrients to nail your indoor soil grow — TNT Complex, Bloom Complex, Root Complex and SuperVit, perfectly dosed for beginners and seasoned growers.
Hand-picked by BloomLED, French growshop expert with 10+ years guiding indoor growers from seed to harvest.
No filler agents · Organic-rich · 4 bottles · Indoor soil cultivation
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Starting an indoor soil grow and looking for a no-nonsense, ready-to-use nutrient pack? The HESI Soil StarterBox brings together the four essential products from Dutch manufacturer HESI in a starter format, to take your plants from seedling to harvest without breaking the bank.

| HESI Product | Grow Phase | Main Role |
|---|---|---|
| TNT Complex | Vegetative | Nitrogen-rich NPK base for vigorous foliage and abundant biomass |
| Bloom Complex | Flowering | Organo-mineral booster for dense, fragrant and high-yielding flowers |
| Root Complex | Cloning / young plants | Root stimulator with vitamins and amino acids for fast, healthy rooting |
| SuperVit | All phases | 24-vitamin and amino acid cocktail to boost overall plant vitality |
Unlike many off-the-shelf nutrients, HESI strips out useless ballast agents. Every millilitre works for your plants — no substrate overload, no nutrient lockout in the root zone.
Soil cultivation is more forgiving: nutrients diffuse and are taken up on demand. The HESI StarterBox is calibrated to match this slower rhythm with mild, controllable doses.
Pairing TNT with Bloom Complex delivers a balanced NPK profile. Expect robust plants in veg and tight, expressive buds when flowering kicks in.
Compact bottles, straightforward feeding chart, instant set-up: the ideal pack for your first indoor cycle or to test HESI before committing to the full range.
The HESI Soil StarterBox is calibrated for one full cycle on 1 to 2 plants in 11–19 L pots, from cloning to late flower. For 4+ plants, treat it as an introduction and we will guide you to larger value-format bottles.
Is it compatible with any soil?Yes. HESI's Soil range is designed to work with most substrates: light-mix, all-mix, pre-fertilised soils or organic peat blends. Just adapt early feedings to the richness of your medium.
Do I need to monitor pH and EC?HESI is famous for its self-buffering pH, but BloomLED still recommends checking pH (target 6.2–6.5 in soil) and EC (1.2 to 2.0 mS/cm depending on the phase) to ensure optimal nutrient uptake.
The HESI Soil StarterBox is your reliable companion for stress-free indoor cultivation. At €48.25 you get top-tier Dutch nutrients backed by BloomLED, the French growshop expert.