Hesi Soil Bloom Complex 5 Litre - Complete Bloom Feed for Soil Growers
Best for: soil growers wanting a complete, easy-to-dose bloom feed with a built-in pH corrector rather than juggling separate bloom nutrients and pH-down.
Our thoughts
Hesi have built their reputation on soil feeding specifically, and Bloom Complex reflects that - it's not a hydro feed with a soil label stuck on, it's genuinely formulated for how nutrients behave in a soil substrate. The built-in pH correction is a nice touch for anyone who forgets to check their tap water pH before every feed. Just remember this is a soil-specific formula - don't reach for it if you're running hydro or aeroponics.
Hesi Soil Bloom Complex is a complete liquid fertiliser formulated for the flowering stage of plants grown in soil. It delivers a balanced spread of macro and micro nutrients aimed at producing strong blooms and improved yields, with a nutrient balance specifically tuned for how soil holds and releases nutrients over time, rather than the faster-release balance used in hydro feeds.
The formula includes a built-in pH corrector, which adjusts the pH of your tap water toward the optimal range for nutrient uptake as part of the feed itself, cutting out a separate pH-down step for most growers. It's a soil-specific formula - Hesi make a separate Hydro Bloom product for hydro and aeroponic systems, since the nutrient ratios needed to avoid overfeeding differ between the two growing methods.
How it compares
Soil-specific bloom nutrients are a well-established category among the Dutch nutrient brands, and Hesi competes directly with a couple of familiar names.
- BioBizz Bio-Bloom is the closest organic-leaning alternative, though it doesn't include Hesi's built-in pH correction feature.
- Canna Terra Flores is a widely used soil bloom feed with a similar dosing approach, generally priced in a comparable bracket.
- Plagron Terra Flores is another close comparison, again without the automatic pH adjustment Hesi builds into its formula.
The built-in pH corrector is the main practical difference here - it doesn't change the underlying nutrient job, but it does remove one more step from a soil grower's feeding routine.
Usage guidance
Dosage
Use 5ml per litre of water (50ml per 10 litres) from the start of the flowering stage.
Growing medium
Formulated specifically for soil - use Hesi's Hydro Bloom instead if you're growing in hydroponics or aeroponics.
pH
The built-in pH corrector adjusts tap water toward the right acidity as part of the feed, though it's still worth spot-checking pH periodically, particularly with harder tap water.
Feeding schedule
Follow Hesi's published feeding schedule alongside their other soil range products for best results if you're running a full Hesi programme.
Technical specifications
- Format: complete liquid bloom fertiliser
- Volume: 5 Litre
- Growing medium: soil only (not for hydro/aeroponics)
- Feature: built-in pH corrector
- Dose rate: 5ml per litre (50ml per 10L)
- Growth stage: flowering
- Manufacturer: Hesi
Who this is for
- Soil growers wanting a dedicated bloom feed rather than a multi-purpose formula
- Growers who want fewer separate bottles to manage during flowering
- Anyone using hard tap water who'd benefit from built-in pH correction
- Growers already running other Hesi soil range products
Not suitable for hydro or aeroponic systems - pick up Hesi Hydro Bloom instead for those setups.
Our take
Bloom Complex does the two things a soil flowering feed needs to do well - deliver a properly balanced nutrient spread and take some of the pH guesswork out of the process. It's a straightforward bottle-and-dose product rather than anything complicated.
Does exactly what it should, day in, day out. Worth picking up if you're growing in soil and want one less thing to manage during flowering.
