Grotek Blossom Blaster Pro: a strong foundation for early flowering
The first weeks of flowering are decisive: that’s when plants form their flower sites, the very ones that will become your buds. Blossom Blaster Pro from Grotek is designed for this transition. The liquid version of Blossom Blaster powder, it supplies phosphorus in its most available form plus a chelated trace-element complex, at a very low application rate.
What’s inside Blossom Blaster Pro
- Orthophosphate phosphorus: the form plants use directly, suitable even for foliar spraying.
- Chelated trace elements: boron, iron, molybdenum and zinc to support flowering metabolism.
- A little nitrogen (1%) for the transition from growth to bloom.
- Liquid and residue-free: mixes instantly and suits drip irrigation and hydroponics.
Specifications
| Brand | Grotek (Canada) |
| Type | Early bloom activator |
| NPK | 1-4-0 |
| Trace elements | Boron 0.02%, iron 0.1%, molybdenum 0.01%, zinc 0.2% |
| Phase | Pre-flower and early flowering |
| Growing media | Soil, coco, hydroponics and aeroponics |
| Sizes | 1 L, 4 L and 10 L |
Dosage and directions
- Root feed (soil, soilless and hydroponics): 1 ml per litre of water.
- Foliar spray: 0.5 ml per litre, in low light.
- When: 2–3 applications per grow, from the first pistils through to early flower development.
- Shake well, then check and adjust the pH after mixing.
The Bud Fuel Pro and Blossom Blaster Pro duo
Grotek designed Blossom Blaster Pro to work with Grotek Bud Fuel Pro. Bud Fuel Pro helps establish flower sites, then Blossom Blaster Pro feeds those young flowers. Many growers alternate the two during the first three weeks of flowering.
In your Grotek programme
Blossom Blaster Pro is added to your bloom base nutrient, such as Grotek Solo-Tek Bloom. Once flowers are set, Monster Bloom takes over for bulking. Browse the full range in our Grotek nutrients category.
FAQ
Does Blossom Blaster Pro help control stretch?
Grotek presents it as an early bloom activator, not an anti-stretch product. Many growers use it at this stage to keep plants more compact, but results depend mostly on the strain and lighting.
What’s the difference from Blossom Blaster powder?
The goal is the same. The Pro version is liquid: easier to dose and residue-free in hydroponic systems and drippers.
Should I use it throughout flowering?
No. 2–3 applications in early flowering are enough. After that, switch to a bulking booster such as Monster Bloom.
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