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Green House Powder Long Flowering 500 gr
Green House Powder Feeding Long Flowering 500 gr is the standard format for growers specializing in varieties with 10+ week bloom periods. This NPK 18-12-18 all-in-one mineral powder with 2% MgO produces 500 liters of full-cycle nutrient solution carrying the highest phosphorus concentration in the Powder Feeding range. The balanced macro ratio sustains vegetative vitality alongside extended flower production for sativa-dominant genetics and slow-maturing hybrids. Available at plantandflower.be.
Green House Long Flowering 500 gr – Sustained Nutrition for Extended Generative Cycles
Growing long-flowering varieties means committing to an extended timeline – and the nutritional program must match that commitment. Green House Powder Feeding Long Flowering 500 gr delivers 500 liters of phosphorus-rich full-cycle nutrition, purpose-built for genetics that need 10 weeks or more to reach their full generative potential. Within the Green House Powder Feeding mineral lineup, Long Flowering occupies the high-phosphorus, balanced-NPK position that slow-maturing varieties demand.
The NPK 18-12-18 Balance: Engineered for Patience
The NPK 18-12-18 ratio is the most balanced in the mineral range – no single macronutrient dominates disproportionately. This equilibrium reflects the growth pattern of long-flowering varieties: they build methodically rather than sprint. The 18% nitrogen sustains vegetative processes that remain active well into late flowering, where a 15% or 16% nitrogen formula would leave the plant deficient. The 12% phosphorus fuels a root network that continues expanding long after rapid varieties have completed their cycle. The 18% potassium supports flower formation that intensifies progressively over the additional weeks of bloom.
Phosphorus and Root Architecture: The Yield Foundation
The correlation between phosphorus availability and root system development is among the most established principles in plant physiology. Phosphorus is a structural component of the membrane phospholipids that form every new root cell. It drives ATP synthesis, the energy molecule required for cell division. For varieties maintaining intensive metabolic activity for 10-14 weeks of bloom, an extensive and robust root system is the foundation on which all flower production rests. At 12% P₂O₅, Long Flowering delivers nearly double the phosphorus of Short Flowering (6%) and substantially more than Hybrids (7%). Growers tracking root mass at harvest consistently observe denser, more developed root systems when using Long Flowering versus lower-phosphorus alternatives.
Phase-Specific Nutrition Management
- Vegetative phase (weeks 1-4): 0.5-1 g/L. Sativa-dominant varieties develop taller, more open architecture requiring solid nitrogen support.
- Early flowering (weeks 5-7): 1 g/L. Long-flowering genetics transition to generative growth more gradually than rapid finishers.
- Peak flowering (weeks 8-12+): 1 g/L, optionally supplemented with Booster PK+ 500 gr for enhanced phosphorus and potassium during intensive flower production.
- Final weeks: gradual concentration reduction to facilitate maturation and final flush.
Supplementation and Adaptation
For soft or RO water, Calcium 500 gr compensates for the deliberately calcium-free formula. Growers wanting enhanced nitrogen in early vegetative phase can start with Grow 500 gr for the first weeks before switching to Long Flowering at flower initiation. In soil, consistently alternate nutrient feeds with plain water to prevent salt accumulation – particularly important over the extended cycle duration of long-flowering varieties.
Get Green House Long Flowering 500 gr at plantandflower.be – fast shipping across Belgium. The nutrition that stays with your genetics through every week of their extended journey.
How many cycles does 500 gr of Long Flowering cover?
Long-flowering varieties consume 30-50% more solution per cycle than rapid finishers due to their extended timeline. For a 4-6 plant setup, 500 liters typically covers 1-2 complete rotations depending on container size and total cycle duration.
Why does Long Flowering contain more nitrogen than Hybrids or Short Flowering?
Long-flowering varieties maintain active vegetative processes alongside flowering for an extended period. The 18% nitrogen (vs 15% for Hybrids, 16% for Short Flowering) ensures the plant remains vigorous and productive throughout the 10+ week bloom without showing late-stage nitrogen deficiency symptoms.
Does Long Flowering require calcium supplementation?
Long Flowering is calcium-free, designed for hard water that naturally supplies calcium. For soft water, rainwater, or RO water, add Green House Calcium from day one. The extended cycle duration makes calcium deficiency prevention particularly important, as deficiencies become increasingly difficult to correct in late flowering.
How does Long Flowering compare to Short Flowering?
Long Flowering (NPK 18-12-18) maximizes phosphorus (12%) and nitrogen (18%) for 10+ week bloom cycles. Short Flowering (NPK 16-6-26) concentrates potassium (26%) for explosive flower formation in varieties finishing within 8 weeks. Each formula is optimized for a specific flowering duration range.
