Watering
Autonomous Grows: Sensors, Automatic Feeding and AI-Grow Management in Home Cannabis Cultivation
Autonomous Grows: Sensors, Automatic Feeding and AI-Grow Management in Home Cannabis Cultivation

Autonomous grows: smart irrigation, EC/pH sensors, mobile LED and ventilation control, and AI-powered grow management for home cannabis cultivation.

Lighting
Sustainable and Energy-Efficient Indoor Growing – How to Reduce Costs and Your Carbon Footprint
Sustainable and Energy-Efficient Indoor Growing – How to Reduce Costs and Your Carbon Footprint

How to lower electricity bills in a grow room? A guide to sustainable, energy-efficient indoor cultivation: LEDs, ventilation, heat recovery, parameters and costs.

Lighting
Too Much Light? Myth or Real Threat in Indoor Growing?
Too Much Light? Myth or Real Threat in Indoor Growing?

Can you have too much light in indoor cannabis growing? Learn how excess light affects plants, symptoms of light stress, optimal PPFD and DLI values, and how to set LED and HPS lamps to avoid losing both yield and money.

Lighting
LED Brand Test: Mars Hydro, Spider Farmer, Viparspectra
LED Brand Test: Mars Hydro, Spider Farmer, Viparspectra

Which LED grow light brand performs best for cannabis? We compare Mars Hydro, Spider Farmer, and Viparspectra: real PPFD data, prices in euros, grower reviews, and harvest results. Find out which one offers the best value for money.

Lighting
Lamp Showdown: LED vs. HPS in Practice
Lamp Showdown: LED vs. HPS in Practice

LED or HPS? We compare the classic 600W HPS with modern 300–350W LEDs. Check out electricity costs, growroom temperature, and real yields to choose the best lamp for your grow.

Lighting
Light and Cycles — From Seedling to Harvest
Light and Cycles — From Seedling to Harvest

How should you set the light schedule in cannabis cultivation? 18/6, 12/12, or maybe 24h? Learn how to adjust cycles from seedling to flowering, and discover unusual schedules for autoflowers and fast harvests.

Lighting
3 Days of Darkness Before Harvest — Myth or Game-Changer?
3 Days of Darkness Before Harvest — Myth or Game-Changer?

Do three days of darkness right before harvest really increase resin and THC levels? Let’s break down this popular technique, grower opinions, and what science actually says.

Lighting
2×4 setups: budget vs. premium (shopping list, real yields)
2×4 setups: budget vs. premium (shopping list, real yields)

Grow tent 120×60 cm — comparison of budget and premium setups. Shopping list, electricity costs, and real yields. What does an extra €800 investment really bring?

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.

Lighting
DLI and PPFD without pro gear: how to set your light with a phone
DLI and PPFD without pro gear: how to set your light with a phone

Set grow light without pro gear: measure PPFD & DLI with a phone, quick DLI math, correct LED distance, targets for veg/flower — no light burn.

Lighting
Lighting for Cannabis: How to Calculate the "Light Diet" from A to Z
Lighting for Cannabis: How to Calculate the "Light Diet" from A to Z

PPFD, DLI, PPF, and PPE explained "in simple terms." Specific ranges for cannabis, calculation examples, and practical setup tips.

MJFMJF

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

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