Skip to content
Free shipping over €25
Azarius

Cannabis & THC

AZARIUS · Before you start: the legal bit and the honest bit
Pillar Guide

How to Grow Cannabis: A Step-by-Step Home Grower's Guide

Learning how to grow cannabis at home means mastering four variables: genetics, light, environment (VPD 0.8–1.5 kPa), and feeding. Rodriguez-Morrison et al. (2021) showed cannabis yield scales with PPFD up to roughly 1,000 µmol/m²/s under indoor conditions — meaning equipment and technique, not luck, decide your harvest.

More Cannabis & THC articles

AZARIUS · What a hermie actually is, and why you should care
cluster

Cannabis Hermaphrodite: Identify, Prevent, Act

A cannabis hermaphrodite is a female plant that develops male pollen sacs or banana-shaped anthers (nanners), self-pollinating and seeding your harvest.

AZARIUS · What is DIY cannabis fertilizer?
cluster

DIY Cannabis Fertilizer: Homemade Nutrient Guide

DIY cannabis fertilizer guide: compost, teas, banana ferments and feed schedules, with safety notes and cited research for home growers.

AZARIUS · What to do with male cannabis plants
cluster

What To Do With Male Cannabis Plants: 6 Practical Uses

What to do with male cannabis plants: identify, isolate, breed, extract, or compost. A practical 6-step guide with sourcing and safety notes.

AZARIUS · Why trichomes decide harvest day
cluster

When To Harvest Cannabis Trichomes: A Grower's Guide

Deciding when to harvest cannabis trichomes means reading the resin glands on your calyxes under 60x–100x magnification and cutting when the milky-to-amber…

AZARIUS · What does flipping to 12/12 actually do?
cluster

When To Flip Cannabis To 12/12: Timing The Switch

When to flip cannabis to 12/12 is a timing decision that switches photoperiod plants to 12 hours light and 12 hours dark to trigger flowering via florigen…

AZARIUS · Why frequency, volume and runoff are one decision, not three
cluster

Watering Cannabis Frequency Volume Runoff: Full Guide

Watering cannabis frequency volume runoff is the feedback loop between how often you irrigate, how much you apply, and what drains from the pot.

AZARIUS · VPD reference table by growth stage
cluster

VPD for Cannabis: Targets by Growth Stage

VPD for cannabis is the kilopascal gap between the moisture the air holds and its saturation point, controlling how fast plants transpire.

AZARIUS · Comparison at a glance
cluster

Topping vs FIMing Cannabis: Which Training Cut Wins?

Topping vs FIMing cannabis is a pair of high-stress training cuts that break apical dominance to produce more main colas.

AZARIUS · Quick comparison at a glance
cluster

Photoperiod vs Autoflower Cannabis: Key Differences

Photoperiod vs autoflower cannabis is a genetics choice: photoperiod strains flower when light cycles shift to 12 hours dark, while autoflowers — crosses…

AZARIUS · Step 1 — Know your latitude before you buy seeds
cluster

Outdoor Cannabis Grow Calendar Europe: Month-by-Month

An outdoor cannabis grow calendar for Europe is a latitude-adjusted month-by-month plan covering germination, transplant, training, flowering and harvest.

AZARIUS · What main-lining actually does to the plant
cluster

Main-Lining Cannabis: Manifolding Step by Step

Main-lining cannabis, also called manifolding, is a photoperiod training method where a seedling is topped to the third node and trained into a symmetrical…

AZARIUS · What "hybrid" actually means on a seed packet
cluster

Indica Sativa Hybrid Chemovar: What It Means for Growers

An indica sativa hybrid chemovar is a cannabis cultivar crossing both morphological lineages, classified by its cannabinoid and terpene profile rather than…

AZARIUS · Step 1: Match seed type to your setup
cluster

How To Choose Cannabis Seeds: Grower's Guide

How to choose cannabis seeds is a framework for matching genetics — feminised, autoflower, or regular — to your space, climate, and timeline.

AZARIUS · What guerrilla growing actually means
cluster

Guerrilla Cannabis Growing: Outdoor Cultivation Explained

Guerrilla cannabis growing is an outdoor cultivation practice that uses unsupervised wild land — woodland, scrubland, field edges — with minimal visits…

AZARIUS · At a glance: the four jurisdictions compared
cluster

Germany 3 Plant Rule vs NL, CZ, ES: Home Grow Compared

The Germany 3 plant rule, codified in the Cannabisgesetz (BMG, 2024), is a statutory allowance that lets adults grow up to three cannabis plants at home.

AZARIUS · What is flushing, really?
cluster

Flushing Cannabis: Why, When and How to Do It

Flushing cannabis is a pre-harvest technique that involves watering plants with plain, pH-adjusted water in the final 1–14 days before harvest to draw down…

AZARIUS · Feminized Vs Regular Vs Autoflower Seeds
cluster

Feminized vs Regular vs Autoflower Seeds: Compared

Feminized vs regular vs autoflower seeds is the three-way choice among cannabis seed categories.

AZARIUS · Drying Cannabis Temp Rh Time
cluster

Drying Cannabis Temp RH Time: Complete Grow Guide

Drying cannabis temp RH time is the 10–14 day post-harvest framework where buds lose moisture under controlled conditions — typically 18–21°C and 55–60%…

AZARIUS · What defoliation actually does to a cannabis plant
cluster

Defoliation and Schwazzing Cannabis: Techniques Explained

Defoliation and schwazzing cannabis are leaf-removal techniques that open the canopy for better light penetration and airflow.

AZARIUS · Why cure at all?
cluster

Curing Cannabis In Jars: Step-by-Step Guide

Curing cannabis in jars is the post-dry phase where trimmed buds rest in sealed glass at 60–65% relative humidity, allowing chlorophyll and sugars to break…

AZARIUS · Cannabis Ventilation Carbon Filters Airflow
cluster

Cannabis Ventilation Carbon Filters Airflow: Tent Setup Guide

Cannabis ventilation carbon filters airflow refers to the combined system of inline fan, activated-carbon filter and internal circulation that exchanges tent…

AZARIUS · Cannabis Vegetative Stage
cluster

Cannabis Vegetative Stage: A Grower's Step-by-Step Guide

The cannabis vegetative stage is the leafy growth phase between seedling and flowering, when the plant builds stems, branches, and roots but no buds.

AZARIUS · Step 1: Recognise when the cannabis seedling stage begins and ends
cluster

Cannabis Seedling Stage: A Grower's Step-by-Step Guide

The cannabis seedling stage is the 14–21 day window from cotyledon emergence to the third or fourth set of true leaves, when roots establish and the plant is…

AZARIUS · What actually is a cannabis seedbank, and how is it different from a breeder?
cluster

Cannabis Seedbanks: What To Look For When Choosing One

Cannabis seedbanks are retailers that source, store, and ship seeds from breeders to home growers.

AZARIUS · Cannabis seed germination methods at a glance
cluster

Cannabis Seed Germination Methods: 4 Ways That Work

Cannabis seed germination is the process of breaking seed dormancy with moisture, warmth (21–25°C), and darkness until a taproot emerges.

AZARIUS · Why the screen works (brief)
cluster

SCROG Screen of Green: Cannabis Training Guide

SCROG (Screen of Green) is a cannabis training method that weaves branches through a horizontal mesh during late veg and early flower, flattening the canopy…

AZARIUS · pH targets at a glance
cluster

Cannabis pH Targets Per Medium: Soil, Coco & Hydro

Cannabis pH targets per medium are the root-zone acidity ranges that keep nutrients available to the plant: roughly 6.2–6.8 in soil, 5.8–6.2 in coco coir…

AZARIUS · Spider mites: the tent-killers
cluster

Cannabis Pests Spider Mites Thrips Gnats: Home IPM Guide

Cannabis pests spider mites thrips gnats is shorthand for the three most common pests in home cannabis tents.

AZARIUS · Step 1: Understand what NPK actually does in a cannabis plant
cluster

Cannabis Nutrients NPK Guide: Ratios by Stage

A cannabis nutrients NPK guide is a feeding framework that matches nitrogen, phosphorus, and potassium ratios to each growth stage.

AZARIUS · The cannabis nutrient deficiency chart at a glance
cluster

Cannabis Nutrient Deficiency Chart: Symptom Diagnosis Guide

A cannabis nutrient deficiency chart is a diagnostic reference that maps visible leaf symptoms — yellowing, spotting, clawing — to the specific nutrient…

AZARIUS · Step 1 — Know exactly what you're looking for
cluster

Cannabis Mold Bud Rot Prevention: Grower Guide

Cannabis mold bud rot prevention is the management of humidity, airflow, training and genetics to stop Botrytis cinerea colonising flowers in late bloom.

AZARIUS · What LST actually does to a cannabis plant
cluster

Cannabis LST Low Stress Training: Step-by-Step Guide

Cannabis LST low stress training is a non-cutting technique that gently bends and ties down branches to flatten the canopy and break apical dominance without…

AZARIUS · Reading the leaves: what your plant is telling you
cluster

Cannabis Leaf Problems Yellowing Curling: Diagnostic Guide

Cannabis leaf problems yellowing curling is a diagnostic framework that maps leaf symptoms to grow-room causes: older-leaf yellowing points to mobile…

AZARIUS · Where Europe stands on home cultivation in 2026
cluster

Cannabis Home Grow Laws Europe 2026: Country Guide

Cannabis home grow laws Europe 2026 is a patchwork framework that lets adults in some EU member states cultivate a small number of plants at home while…

AZARIUS · The full cannabis growth stages timeline at a glance
cluster

Cannabis Growth Stages Timeline: Seed to Harvest

The cannabis growth stages timeline is a cultivation roadmap covering germination, seedling, vegetative, pre-flower, flowering, and cure — typically 14–24…

AZARIUS · Soil vs coco vs hydro at a glance
cluster

Cannabis Growing Medium Soil Coco Hydro Compared Guide

A cannabis growing medium is the substrate roots grow in — soil, coco coir, or hydroponic nutrient solution — and each sets different pH, EC, and watering rules.

AZARIUS · Before you start: what a grow tent actually does
cluster

Cannabis Grow Tent Setup: Step-by-Step Guide

A cannabis grow tent setup is a sealed, reflective fabric enclosure with integrated lighting, ventilation and climate control used for indoor cultivation.

AZARIUS · Cannabis Grow Lights Led Hps Cmh
cluster

Cannabis Grow Lights LED HPS CMH: Full 2026 Compare

Cannabis grow lights LED HPS CMH is the three-way choice home tent growers face: LED (2.5–3.1 μmol/J, full spectrum, low heat), HPS (red-heavy, cheap, hot)…

AZARIUS · Before the flip: what week 0 looks like
cluster

Cannabis Flowering Stage Week by Week: Full Guide

The cannabis flowering stage week by week is the 8–12 week period after the 12/12 flip (or around week 4 for autoflowers) during which pistils emerge…

AZARIUS · What €300 actually buys you
cluster

Budget Cannabis Grow Setup 300 Euro: What Actually Works

A budget cannabis grow setup 300 euro is a first-cycle indoor build centred on an 80×80 tent, a 100–150W LED, basic ventilation, soil, and autoflower genetics.

Sign up for our newsletter-10%