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

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

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

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

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

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

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

Fertilizing
Cal-Mag: shield or placebo?
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.

Fertilizing
Cannabis leaves in coco and hydro — complete diagnostics (pH/EC, tables and charts)
Cannabis leaves in coco and hydro — complete diagnostics (pH/EC, tables and charts)

How to read cannabis leaves in coco, DWC/RDWC, aeroponics, rockwool and other media. pH/EC ranges, the most common symptoms (Ca/Mg, K, Fe…), quick fixes and “false alarms” (root oxygen, solution temperature, spray nozzles). Tables + downloadable charts.

Fertilizing
Cannabis leaves — full diagnostics of soil deficiencies and excesses (pH 6.3–6.8, nutrient availability table)
Cannabis leaves — full diagnostics of soil deficiencies and excesses (pH 6.3–6.8, nutrient availability table)

A complete guide to leaf symptoms in cannabis: nitrogen, phosphorus, potassium, calcium, magnesium, sulfur, iron, manganese, zinc, copper, boron, molybdenum, chlorine, sodium, and toxicities. Nutrient availability vs pH table, diagnostic checklist, quick fixes, and “false alarms” (overwatering, wind, light, pests).

Lighting
Foxtails: fix or ignore? When it’s a problem, and when it’s “just the cultivar”
Foxtails: fix or ignore? When it’s a problem, and when it’s “just the cultivar”

Foxtailing in cannabis: when it’s a light/heat problem vs. just the cultivar. How to stop it in 24–48 h and protect density, flavor, and resin.

Lighting
Too close, too far? The golden LED distance — and how not to confuse light burn with deficiencies
Too close, too far? The golden LED distance — and how not to confuse light burn with deficiencies

Set the ideal LED-to-canopy distance: starter tables, light burn vs deficiencies, when to raise or dim, plus PPFD/DLI tips for an even, stress-free canopy.

MJFMJF

We regularly drop posts here about growing marijuana. Swing by often if you're as into it as we are.
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