199 free guides for soil growing — in English
Learn how to optimally prepare and improve the soil to ensure a healthy start for cannabis plants with pH 6.0-7.0 and or…
Optimum use of light in soil cultivation: Reduce shadows and provide optimum lighting for every plant with reflectors, d…
Nutrient buffering and soil microbes in soil growing: harness natural buffer capacity and the soil microbiome for a stab…
Learn how to recognize and manage sudden climate deviations in indoor soil cultivation to effectively compensate for tem…
Cannabis bonsai training: gentle wire training and targeted pruning for a compact, symmetrical tree structure — ideal fo…
Optimize water storage and use in soil cultivation. Learn how soil structure, organic additives and adapted watering tec…
An equipment guide for selecting and setting up drip irrigation systems in soil-based cannabis cultivation. Focus on opt…
Detailed guide to diagnosing and correcting sulphur deficiency in soil-grown cannabis. Learn about symptoms, causes and …
Guideline for the detection, prevention and biological control of beetle-induced soil damage in cannabis cultivation in …
Learn how to identify leafminers early and control them effectively to prevent damage to your cannabis plants.
Excess potassium in soil: hidden secondary problems like calcium and magnesium blockages — recognise typical symptoms, d…
This allows you to control the supply air in the soil indoor grow properly: draught-free, temperature-stable and with co…
How to match the watering quantity and interval to the pot size when growing in soil. The guide shows you how to water s…
These guides apply equally to soil, coco, hydro and outdoor grows.
Autoflower vs photoperiodic: autoflowers harvest in 8–12 weeks without light schedule change, photoperiodic varieties re…
Cannabis law in Germany 2025: adults may grow up to 3 plants and possess 25g in public — current legal regulations and p…
Perfect climate control in the grow tent: 22–26°C at 60–70% humidity in veg, 20–24°C under 50% in flower — automated wit…
LST — Low Stress Training: gently bend and tie shoots from week 4–6 for a flat, light-filled canopy without pruning stre…
Determine harvest time by reading trichomes: milky/cloudy for maximum THC, 20–30% amber for relaxing effect — step-by-st…
Dry and cure cannabis correctly: 7–14 days at 18–22°C and 45–55% humidity, then at least 2 weeks in airtight jars for op…
Effectively prevent mould and pests: keep humidity below 50% in flower, complete air exchange every 3 minutes and mainta…
Measure and adjust pH and EC correctly: soil pH 6.0–7.0, coco/hydro 5.5–6.5 — high pH causes iron deficiency, low pH blo…
Basic equipment for cannabis cultivation: grow tent, LED light, exhaust fan, carbon filter, timer, pH and EC meter, hygr…
Choose cannabis genetics: Indica compact with 8–10 weeks flowering and relaxing effect, Sativa tall in 10–14 weeks with …
Advanced plant training combinations: LST + SCROG for maximum efficiency, topping + LST for a wide canopy, supercropping…
Guerilla Growing — discreet and effective: choose southern exposure, secure water source and camouflage plants among oth…
Cannabis life cycle: germination 1–7 days, seedling 1–3 weeks, vegetative up to 16 weeks, flowering 6–12 weeks — all pha…
Cannabis anatomy explained: roots for nutrient uptake, stem for transport, leaves for photosynthesis and flowers for rep…
Greenhouse cannabis: automatic ventilation above 25°C, shading in summer, heating in winter and light deprivation for co…
Mainlining for 8 equal main shoots: systematic topping from the 3rd node and LST for perfect symmetry and even energy di…
Topping vs FIM: topping removes the shoot tip completely for 2 main shoots, FIM removes 75% for 3–4 shoots — timing, tec…
Cannabis long-term storage: vacuum-sealed jars with Boveda packs at 15–21°C in total darkness — how to preserve potency …
Curing for best aroma and potency: store in airtight jars at 55–65% humidity — burp daily in the first week, then weekly…
Harvest for maximum quality: harvest at end of dark phase, use sharp shears, choose wet or dry trimming and remove large…
Aeroponics for record growth: free-hanging roots misted every 3–5 minutes with nutrient solution — maximum oxygen supply…
Thrips in the grow room: silvery leaf stripes and black droppings as early warning signs — combat with blue sticky traps…
Integrated pest management for cannabis: combine prevention, monitoring, biological and chemical control in a structured…
CO2 enrichment used correctly: 1200–1500 ppm boosts photosynthesis by 20–40%. Only effective in closed systems — via CO2…
Prevent mould and mildew effectively: keep humidity below 60% in flower, ensure good air circulation and avoid temperatu…
SCROG for even light distribution: spread net 20–30cm above pots, thread shoots through 5x5cm mesh and switch to flower …
VPD for optimum transpiration: measure vapour pressure deficit in kPa from temperature and humidity — seedling 0.4–0.8, …
Lollipopping for better flower quality: remove lower shoots and leaves 2–3 weeks before flowering for focused energy on …
Eliminate whiteflies: identify honeydew, yellow spots and white insects on leaf undersides — use yellow sticky traps, En…
Spider mites: identify yellow dots and fine webs on leaf undersides early — test with white paper and treat with predato…
Eliminate fungus gnat larvae: the larvae damage roots — treat with BTI solution, nematodes (Steinernema feltiae) and kee…
Beneficial insects used correctly: Phytoseiulus persimilis against spider mites, Encarsia formosa against whiteflies, la…
Rockwool as hydroponic substrate: soak 24h in pH 5.5 solution, never allow to dry out completely and monitor EC buffer f…
Optimise air circulation: oscillating fans on 3 levels, 1–5 air changes per minute — prevent mould, heat build-up and CO…
Temperature day/night cycles for cannabis: 22–26°C during the day, 18–22°C at night with 4–8°C difference for healthy gr…
Preventive hygiene in the grow room: disinfect hands, remove dead material immediately, quarantine new plants for 14 day…
Supercropping — controlled stress: squeeze and bend shoots to create thicker stems and increased bud volume in the veget…
Avoid light burn and adjust intensity: yellow tips and bleached areas are warning signs — gradually increase intensity, …
Prepare cannabis for harvest: flush 1–2 weeks with pH 6.0–6.5 to reduce salts — start when 70% of trichomes are milky an…
Calcium-magnesium balance: Ca:Mg ratio 3:1 to 5:1 optimal — calcium deficiency shows brown spots, magnesium deficiency c…
Organic or mineral fertilisers: organic promotes soil life and flavour, mineral enables precise dosing and fast effect —…
Compare cannabis lighting efficiency: top LEDs reach 2.8–3.0 μmol/J, standard HPS 1.3–1.5 μmol/J — cost-benefit analysis…
Light cycles for cannabis: photoperiodic varieties need 12/12 to flower, autoflowers bloom on 18/6 or 20/4 — all differe…
LED spectrum for cannabis: blue light 400–500nm drives vegetative growth, red 600–700nm promotes flowering — optimise sp…
EC value understood and controlled: measure dissolved salts in mS/cm — seedlings 0.4–0.8, vegetative 1.2–1.6. Detect sal…
Organic boost additives for cannabis: mycorrhiza and humic acids for roots, molasses and amino acids for flowers, silica…
NPK ratios for growth phases: seedlings 1-1-1, vegetative 3-1-2, early flowering 1-3-2, late flowering 1-3-3 — plus calc…
Measure and correct pH for cannabis: soil 6.0–7.0, hydro and coco 5.5–6.5 — use calibrated meters and adjust with pH-Up …
PPFD for cannabis: seedlings 200–400, vegetative 400–600, flowering 600–1000+ μmol/m²/s — photosynthetic photon flux and…
Micronutrients for cannabis: iron for chlorophyll, manganese for photosynthesis, zinc for enzymes, boron for cell walls,…
Successful flowering phase management for maximum potency and yields. Perfectly harmonise nutrients, environment and tim…
The vegetative phase lays the foundation for high yields. Light, nutrients and training for explosive development.
Cannabis breeding for stable lines and new varieties. Crossing, selection and stabilisation over several generations.
Organic fertilisers promote soil life and sustainable growth. Use compost, worm humus and natural amendments correctly.
Long-term cannabis storage without loss of quality. Optimum conditions for years of storage.
Mycorrhizal fungi improve nutrient uptake and stress resistance. Biological symbiosis for stronger cannabis plants.
Maximum yields in minimum space. Stealth grows, space buckets and hidden setups for discreet production.
Optimum air circulation prevents mould and strengthens plants. Plan fan strategies and fresh air systems correctly.
Autoflower blooms automatically without light changes. Fast 10-12 week cycles for continuous harvests.
Outdoor cultivation utilises natural sunlight for massive yields. Location, timing and weather management for success.
Modern LED technology versus proven HPS systems. Efficiency, costs, spectrum and yields objectively compared.
Correct harvesting and post-treatment determine the final quality. Timing, techniques and drying for perfect buds.
Healthy roots are crucial for vigorous growth. Root care, problem detection and treatment for optimum results.
NFT enables continuous nutrient supply with minimal water consumption. Structure and optimisation for cannabis cultivati…
Ebb & Flow combines the advantages of soil and hydroponics. Periodic flooding with optimum oxygen supply.
Root zone temperature massively influences nutrient uptake and growth. Optimisation for maximum cannabis performance.
The right substrate has a massive influence on growth, nutrient uptake and yield. Complete substrate guide for every gro…
Proper watering is critical for cannabis health. When, how much and how to water for optimal root growth.
Mealybugs hide well and are difficult to control. Systematic elimination of the cotton-like pests.
SOG maximises harvests per unit of time with many small plants. Optimum plant density and timing strategies.
Aphids significantly weaken cannabis plants. Complete instructions for control and prevention.
Sex determination prevents unwanted pollination. Early detection of male and hermaphrodite plants saves harvests.
Nutrient burns can destroy harvests. Early detection, immediate action and cure for over-fertilised cannabis plants.
Recognising nutrient deficiencies early saves harvests. Complete picture atlas of all deficiency symptoms with immediate…
Understanding and optimising LED efficiency saves hundreds of euros in electricity costs in the long term. Efficiency ca…
Growing organic cannabis without chemicals. Organic fertilisers, living soil and natural methods for sustainable cultiva…
Recognise the most common cannabis pests early and control them effectively. Spider mites, thrips, aphids and more.
Plant Training maximises cannabis yields by manipulating growth. Low Stress Training (LST) and High Stress Training (HST…
Avoid LED heat build-up: without sufficient airflow, heat accumulates under the panel — control distance, optimise air c…
Temperature measurement done right: position sensors at canopy height, avoid direct light on the sensor and use at least…
Temperature troubleshooting: calibrate thermometers, check sensor positions, inspect exhaust for blockages and identify …
Correct lamp-to-plant distance: LED panels 30–45cm, HPS lamps 45–60cm from plant tips — prevents light burn and maximise…
Understanding NPK ratios for cannabis: high nitrogen (20-10-10) in vegetation, more phosphorus (10-30-20) in flowering —…
Indoor vs outdoor cultivation: indoor offers year-round control and multiple harvests, outdoor uses natural light — all …
Cannabis cultivation methods explained: soil is beginner-friendly with natural buffering, hydroponics enables faster gro…
Temperature control for the indoor grow: 20–26°C in the growth phase, 18–24°C in flowering — regulated with exhaust fan,…
Protect cannabis from heat stress: leaves curl upwards and show brown burnt edges — identify symptoms, reduce temperatur…
The right lighting for cannabis: LED, HPS and CMH compared — light cycles, intensity and spectrum for healthy growth and…
Micronutrients are crucial for the growth of cannabis. This guide helps to identify deficiencies and take appropriate ac…
In this guide, you will learn how to use fungicides safely and effectively in cannabis cultivation to combat and prevent…
Controlling humidity is crucial for healthy growth and high yields. This guide shows you how to achieve the ideal humidi…
Cannabis irrigation systems at a glance: drip systems, flood and drain, deep water culture or manual — for growers looki…
Vertical cannabis cultivation: make the most of indoor floor space — planning, setup and adapting lighting and climate f…
Find out how you can use evaporative cooling to reduce temperature peaks and optimally regulate the climate without losi…
Indoor cannabis ventilation strategy: achieve optimum air circulation, control temperature and effectively prevent mould…
Find out how dimmable LED systems and intelligent control for cannabis provide an optimal, dynamically adjusted light sp…
Nitrate vs ammonium in cannabis: achieve a balanced nitrogen ratio for optimal nutrient uptake in both the vegetative an…
Thermal mass and insulation in the grow room: balance temperature fluctuations, stabilise indoor climate and maintain op…
Protecting freshly harvested buds: careful handling and controlled pre-treatment prevent mechanical damage and terpene l…
Learn how to optimize light incidence in the vegetative phase through targeted defoliation and thus increase yields - pr…
Learn how to use soil moisture sensors to precisely control the water supply to your cannabis plants and avoid unnecessa…
Professional use and selection of exhaust fans, activated carbon filters and air ducts - essential equipment for an opti…
Detailed guide to recognizing and correcting calcium and magnesium deficiencies in cannabis based on visual symptoms and…
Plant-parasitic nematodes in cannabis: reliably recognise and diagnose symptoms, then control with targeted biological a…
This guide explains the technique of foliar fertilization in cannabis, its benefits, application methods and important t…
Learn how to set the optimum temperature and humidity at every stage of growth to achieve healthy growth and maximum yie…
Find out how the choice of time of day affects the quality of your cannabis harvest and which times are ideal.
Learn how controlled stress during the flowering phase can increase the cannabinoid production of your cannabis plants.
Recognizing and correcting manganese deficiency in cannabis plants through specific symptoms and targeted measures.
Optimal pot sizes and substrate selection for successful indoor cannabis cultivation. Tips on soil preparation and care.
Optimal conditions and techniques for successful germination of cannabis seeds for best plant growth.
Explore how different light spectrums can influence and optimize the growth and yield of cannabis plants.
Analyze and optimize water quality for effective nutrient uptake. Treat water hardness and chlorine to ensure nutrient a…
Learn how to optimally control the temperature during the dark phase to prevent mold growth and promote plant growth.
Learn how to create the perfect conditions for drying your cannabis buds to maximize quality and aroma.
Pinching strengthens shoots by gently clamping them. Promotes thicker stems and better nutrient uptake without major str…
Learn how to manually control the water supply for your cannabis plants in indoor cultivation and avoid common mistakes.
A guide to the selection and use of pH, EC and temperature meters and controllers in cannabis cultivation.
Recognize phosphorus deficiency in cannabis early and learn how to take correct measures to remedy it.
Leaf spot diseases can impair the photosynthetic performance of cannabis. Detect and control them effectively with biolo…
Optimum lighting in the indoor grow: effective strategies for each growth phase — from seedling to harvest with LED, HPS…
Learn how nutrient mobility affects plant health and how to recognize and solve mobility problems.
Learn how to control the humidity in your grow room to minimize plant stress and maximize yields.
Learn how to optimize the maturity of your cannabis plants and increase the yield by selectively harvesting early ripe f…
Learn how to optimize the drainage in your grow containers to avoid waterlogging and improve the health of your cannabis…
A guide to selecting and setting up automatic irrigation systems for indoor and outdoor cannabis cultivation.
Recognize boron deficiency in cannabis and find out how you can counteract it with targeted measures.
Rust fungi cause characteristic spots on leaves and weaken cannabis plants. Learn how to recognize them, combat them and…
Discover how to provide autoflowering cannabis plants with optimal nutrient schedules to achieve the best possible resul…
Learn how different carbon sources influence nutrient uptake and promote plant growth.
Find out how varying air pressure conditions affect the climate in the grow room and what adjustments you can make to cr…
Learn how to grow stronger and more stable cannabis plants by gently bending the shoots without damaging the tissue.
A guide to choosing the right grow tent for different growing styles and space requirements.
Recognize zinc deficiency in cannabis early and learn how to take correct measures to remedy it.
Effective strategies for the detection and control of fungus gnats in indoor cannabis cultivation to avoid root damage a…
A comprehensive guide to preventive and integrative pest management methods in cannabis cultivation.
This guide explains effective monitoring methods as part of an IPM system to detect and control pest infestations in can…
Learn how beneficial insects are used effectively in IPM to control pests biologically and sustainably in cannabis culti…
Nutrient management for advanced growers: control applications based on data, interpret EC and pH trends correctly and b…
Beginner watering techniques: test correctly, water purposefully, identify over- and under-watering and keep the water b…
Systematically diagnose pests in the indoor grow: correctly identify and classify infestations, then select targeted cou…
Cannabis in cold climates: keep temperature, humidity and air exchange stable — strategies against cold stress, condensa…
Choosing growing containers for cannabis: material, volume and shape affect root growth for seedlings and young plants —…
Light leaks in the indoor grow: detect, evaluate and eliminate them to protect the dark phase for reliable flowering in …
Drain EC interpreted correctly: recognise salt build-up, adjust nutrient applications phase by phase and avoid over- or …
Control dew point and condensation in the grow room: assess surface temperatures and air flow to safely prevent dripping…
Partial harvest with unevenly ripe plants: harvest buds in several passes — maturity testing, selective cutting and targ…
Backbuilding during flowering: minimise selected cola tips to promote compact, uniform flowers and stronger calyx format…
This guide shows you how to maintain even wetting in the pot when watering, avoid drying channels and safely reabsorb su…
Recirculation fans for indoor cultivation: types, performance, noise level, placement and purchasing criteria for health…
Nitrogen deficiency in cannabis: recognise typical symptoms on older leaves, identify causes and correct N-deficiency in…
Botrytis (bud rot) in cannabis: detect early, contain correctly and minimise further losses with targeted climate, hygie…
Pest thresholds and intervention plans in IPM: define clear thresholds and escalate measures gradually — avoid reacting …
This is how you gradually acclimatize pre-grown cannabis plants to sun, wind and fluctuating outside temperatures to avo…
This guide shows when side lighting is useful for cannabis, how it can be integrated without overexposure and what limit…
How often you completely change the nutrient solution in the hydro reservoir, how to recognize the right time and how to…
Learn how to recognize temperature and humidity differences directly in the canopy and create a uniform plant climate wi…
Bud washing removes dust, insect residue and superficial dirt particles from flowers after pruning. The guide shows you …
Balance out unevenly strong shoots: Selective Branch Training curbs dominant tips and promotes weaker side shoots for an…
The temperature of the irrigation water influences root activity, oxygen availability and stress reactions. This guide s…
This equipment guide explains how to select power supplies, multiple socket outlets, timers, RCDs and cable management f…
Molybdenum deficiency is rare, but is often confused with nitrogen or pH problems. This guide shows typical symptoms, ca…
This allows you to recognize powdery mildew early, distinguish it from residues and treat infested cannabis plants with …
In cannabis cultivation, you can prevent the development of resistance to treatments by changing active ingredients, tim…
How to establish a healthy mother plant and plan the continuous production of cuttings. Focus on genetic preservation, s…
This allows you to create and evaluate a PPFD canopy map in the indoor grow, identify edge fall-off and hotspots and sys…
How phosphorus and potassium boosters can be used sensibly during flowering without causing overfertilization, antagonis…
How to tell if cannabis buds are ready for the jar after drying. The guide explains safe testing methods, typical errors…
How to prepare irrigation water in a practical way: Assess hardness, pay attention to chlorine and chloramine, avoid sed…
This equipment guide shows which harvesting tools are useful for cannabis: scissors, trimmers, gloves, drying nets and a…
Magnesium deficiency occurs particularly easily in coco due to pH errors, soft water or unbalanced nutrient solutions. T…
Recognize root rot early, distinguish it from other problems and contain it effectively with hygiene, oxygen management …
This guide shows you how to permanently reduce pest pressure with clear cleaning, route and material protocols and how t…
How to plan and carry out the repotting of cannabis indoors and in pots correctly: the right time, suitable container se…
How 730-nm Color Red is used in indoor grow specifically at the end of the day to control phytochrome signals without re…
How chelated micronutrients work in cannabis cultivation, when they are useful and how pH, medium and fertilizer form in…
This guide explains when wet trimming or dry trimming after harvesting makes sense, how both methods affect drying and h…
A SCROG net set at an angle balances out unevenly high shoots without any harsh interventions. Ideal for cleanly levelin…
Wick and capillary irrigation passively supplies potted plants with water. The guide shows set-up, adjustment, control a…
Russet mites are microscopic and are often mistaken for stress or deficiencies. This guide shows you how to safely diagn…
This guide explains how to safely take cannabis cuttings, root them and transfer them to the early growth phase without …
This guide shows how to objectively evaluate the uniformity of your cannabis lighting with actionable metrics such as Un…
Silicon is not a classic essential nutrient, but can improve tissue stability and stress tolerance in cannabis cultivati…
Precise climate data is the basis of every control system. This guide shows you how to correctly position, check and reg…
The right plant spacing improves light distribution, air exchange and space utilization. This guide shows you how to ada…
Snails can severely damage young cannabis plants in outdoor cultivation in just a few nights. This guide shows safe dete…