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Best Bloom Boosters for Growers: 2026 UK Buying Guide

Best Bloom Boosters for Growers: 2026 UK Buying Guide

Bloom Boosters

PK shot, metabolic booster or organic? The bloom boosters we'd actually reach for, from £5.50, and how to use them without frying your plants.

Best CalMag Supplements for Growers: 2026 UK Buying Guide

Best CalMag Supplements for Growers: 2026 UK Buying Guide

Additives

Running RO or soft water? The CalMag supplements we'd actually buy, from £4.49, and the quick EC check that tells you if you need one at all.

Rock Resinator Review: A Closer Look at the PK Flower Enhancer

Rock Resinator Review: A Closer Look at the PK Flower Enhancer

Bloom Boosters

A bloom additive you run from week 2 of flower to harvest, from £25. Here's what Rock Resinator does well, where it doesn't, and which size makes sense.