Why Your Buds Are Light and Fluffy (And No — It’s Not Genetics)

Light and fluffy cannabis buds are rarely caused by genetics. Learn how LED lighting, VPD, nitrogen, temperature, and late-flowering mistakes affect bud density — and what to do step by step to grow dense, heavy flowers.

A Deficiency That Doesn’t Exist – How You Create Nutrient Problems Yourself

False nutrient deficiencies are a common mistake in cannabis cultivation. Learn what nutrient lockout really is, how pH, VPD, and temperature imitate deficiencies, and why adding fertilizer often makes the problem worse.

The Plant Isn’t Drinking, Even Though There’s Water Transpiration, the root zone, and the biggest illusion beginners fall for

Plant not drinking despite wet soil? Learn how transpiration, root oxygen, and LEDs cause overwatering symptoms. Understand the difference between thirst and excess water and save your grow.

Why Do Cannabis Leaves Curl? Taco, claw and canoe – how to read leaves and tell stress from deficiencies

Curling cannabis leaves? Learn what taco, claw, and canoe really mean. A beginner-friendly guide to telling environmental stress from nutrient issues — without ruining your grow.

Cal-Mag: When It Is Needed — and When It Destroys a Grow (Truth, Myths and LED Traps)

Cal-Mag in cannabis growing without myths: when it is truly needed, when it harms plants, how LEDs and VPD affect calcium and magnesium uptake.

Why the Plant Does Not Absorb Nutrients: Transpiration, Roots and Nutrient Lockouts in Practice

Why cannabis plants do not absorb nutrients: transpiration, roots and nutrient lockouts explained step by step, with practical diagnosis and solutions.

VPD in Cannabis Growing: How It Really Works, How to Measure It, and How to Use It in Practice

VPD in cannabis cultivation explained simply: how to measure it, correct ranges for veg and flower, a clear VPD table, and how to fix problems step by step.

Saving Cannabis Plants After Heat and Light Stress – A Complete Grower’s Guide

How to rescue cannabis plants after heat and light stress? Complete 2025 guide: symptoms, diagnosis, indoor/outdoor recovery steps and costs in EUR.

How to Identify Cannabis Plant Sex? Pre-flowers in Practice

Learn how to quickly recognize cannabis plant sex. See how to tell males from females by pre-flowers and how not to confuse them with hermaphrodites.

IPM in home cannabis grows — A plan for pests before they appear

Integrated Pest Management (IPM) in home cannabis cultivation is a plan for pests before they even show up. Learn how to use product rotations (without spinosad), predatory mites and growroom hygiene, all adapted to European realities.

Spider mites, thrips, powdery mildew and the rest of the crew that can ruin your harvest before you even say “bloom”

The worst cannabis pests are spider mites, thrips and powdery mildew. Check quick check-lists: first symptoms, what works in veg, what in late flower, and what you should never spray on buds.

Cal-Mag: shield or placebo?

More and more growers use Cal-Mag when growing under LEDs and with filtered water. But does every plant really need it? Find out when calcium and magnesium supplementation is a lifesaver and when it can do more harm than good.