Use a 2ml per litre during the last 2 weeks of the flowering phase. Mills Nutrients - Ultimate PK. The superior composition of Mills Nutrients Ultimate PK has been proven through research and repeated field testing so that our experts would make sure that this will provide your plants with the boost they need for a grand finale – this formula will give your plants all the nutrients they require during ripening in order to achieve more abundant fruit set and hard cell structure.
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