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Cannabis Growing Guides
Germination, feeding, training and harvest — written for growers working with our seeds, from the first soak to the cure.
Purple Punch Outdoors: Climate, Timing & Harvest | Royal King Seeds
Nov 1, 2026
Training & Pruning
137 articles
Strain Guides
35 articles
Beginner Guides
30 articles
Nutrients & Soil
24 articles
Latest Articles
364 articlesstrainOct 7, 2026Georgia Pie Strain: Terpenes & Grow Guide | Royal King SeedsGeorgia Pie strain hits 24-27% THC with a myrcene-caryophyllene-limonene terpene profile, a moderate-to-hard difficulty rating, and 8-9 week indoor flowering — here's everything US growers need to know.strainOct 4, 2026Durban Poison Autoflower: Grow Notes & Review | Royal King SeedsDurban Poison Autoflower finishes in 70-80 days from seed, hits 18-22% THC, and produces 400-500 g/m² indoors — a fast sativa-dominant auto for US growers in any zone.growSep 30, 2026Cannabis Leaves: Structure, Function & What They Tell You | Royal King SeedsCannabis leaves reveal plant health, genetics, and nutrient status through 7 distinct structural features — fan leaves have 5–13 leaflets and sativa leaves are narrower than indica leaves by up to 40%.strainSep 27, 2026Gelato 41 Strain: What Growers Should Know | Royal King SeedsGelato 41 averages 25-28% THC, finishes indoors in 8-9 weeks, and yields 450-550 g/m² under 600 PPFD LED — but demands low humidity and strict VPD control.strainSep 23, 2026Cereal Milk Strain Guide: Grow Tips & Yield | Royal King SeedsCereal Milk is a 50/50 hybrid with 23–28% THC, 8–9 week indoor flower time, and yields of 450–550 g/m² — here's the complete genetics, grow, and yield guide.strainSep 20, 2026Blueberry Muffin Strain: Genetics & Grow Guide | Royal King SeedsBlueberry Muffin is an indica-dominant hybrid averaging 18-22% THC with sweet berry terpenes, finishing in 56-63 days indoors and yielding up to 500 g/m² under 600 PPFD LED.strainSep 17, 2026Apples and Bananas Strain: Terpene Profile & Grow Guide | Royal King SeedsApples and Bananas strain averages 28–32% THC, features a caryophyllene-limonene-myrcene terpene profile, and ranks 7/10 in grow difficulty — best suited for intermediate to advanced US cultivators.plant anatomySep 16, 2026Cannabis Leaf Anatomy: Healthy vs. Sick Foliage | Royal King SeedsCannabis leaves reveal plant health in real time: 7-leaflet fan leaves drive photosynthesis, while yellowing, curling, or spots signal 12 diagnosable deficiencies — fix them within 72 hours to protect yield.strain reviewAug 8, 2026Cherry Pie Strain: Effects, Genetics & Grow Guide | Royal King SeedsCherry Pie strain: 17-24% THC indica-dominant hybrid (80/20) from OG Kush × Durban Poison × Granddaddy Purple genetics, flowering in 8-9 weeks with 400-550g/m² indoor yield.strain reviewAug 6, 2026Gushers Strain: Effects, Grow Guide | Royal King SeedsGushers strain is a 60% indica-dominant hybrid (Gelato #41 × Triangle Kush) with 22–25% THC, 8–9 week flower time, and 450–550g/m² indoor yield — ideal for intermediate US growers.strain reviewAug 4, 2026Girl Scout Cookies Strain Review & Grow Guide | Royal King SeedsGirl Scout Cookies (GSC) is a hybrid strain averaging 25-28% THC with OG Kush × Durban Poison genetics, 9-10 week flower time, and 400-550g/m² indoor yields — ideal for US growers aged 21+.seedlingAug 1, 2026Cannabis Seedling Stage Guide | Royal King SeedsCannabis seedlings need 18/6 light at 200-400 PPFD, 70-80% humidity, 22-26°C temps, and 5-10 mL water every 2-3 days during weeks 1-3 to avoid damping-off and stretch.
Terpenes & Effects
13 articlesterpeneMar 15, 2026Which Cannabis Terpenes Are Best for Pain ReliefWhich Cannabis Terpenes Are Best for Pain Relief and How Do They Work?: Terpenes are the reason two strains at 22% THC can feel completely different.effectsMar 7, 2026New medical marijuana legislation becomes effectiveNew medical marijuana legislation becomes effective: Cannabis for pain and inflammation is a topic where careful language matters.terpeneDec 13, 2025Pinene and Terpenes in Cannabis and AromatherapyPinene and Terpenes in Cannabis and Aromatherapy: Terpenes are the reason two strains at 22% THC can feel completely different.
Indoor Growing
12 articlesvpdMar 30, 2026VPD and Humidity Control for Cannabis GrowsAim for roughly 0.4-0.8 kPa at seedling, 0.8-1.2 kPa in veg and 1.0-1.4 kPa through flower, then keep the lights-off humidity spike down. That spike is where bud rot starts.lightNov 26, 2025How to prepare cannabis beverages at home, a guideHow to prepare cannabis beverages at home, a guide: How to prepare beverages at home. Free shipping is available on eligible orders of $150 or more.lightOct 9, 2025Strength of Cannabis Plants and Their PartsStrength of Cannabis Plants and Their Parts: If you are working through strength of their parts for the first time or troubleshooting an active issue.
Troubleshooting
9 articlesflowerJan 1, 2026Why Did My Autoflower Plant Stay So Small?Why Did My Autoflower Plant Stay So Small?: If you are working through why did my autoflower stay so small?flowerDec 16, 2025Royal King's Top 10 Best Autoflowering SeedsRoyal King's Top 10 Best Autoflowering Seeds: What Changes Between Setups In soil, royal king's top 10 best autoflowering seeds has a slower feedback loop.flowerNov 18, 2025When to Switch from the Vegetative to the FloweringWhen to Switch from the Vegetative to the Flowering Stage: what to check, what to avoid, and how to get it right.
Germination
5 articlesseedlingAug 1, 2026Cannabis Seedling Stage Guide | Royal King SeedsCannabis seedlings need 18/6 light at 200-400 PPFD, 70-80% humidity, 22-26°C temps, and 5-10 mL water every 2-3 days during weeks 1-3 to avoid damping-off and stretch.seedlingJul 13, 2026Germinate Cannabis Seeds: Paper Towel Method | Royal King SeedsGerminate cannabis seeds in 24–120 hours using the paper towel method: keep seeds at 22–25°C, 70–80% humidity, in darkness — achieving 90%+ success rates when done correctly.seedlingApr 14, 2026Cannabis Seedling Stage Mastered in 3 Steps | Royal King SeedsMaster the cannabis seedling stage in 3 proven steps. Protect your young plants, avoid rookie mistakes, and grow stronger plants from day one.
Genetics & Breeding
4 articlessexOct 18, 2026Male Cannabis Plant Identification Guide | Royal King SeedsMale cannabis plants show pollen sacs at nodes within 1-3 weeks of the 12/12 light flip — remove them before sacs open to protect your female crop.sexJul 14, 2026Male vs Female Cannabis Plants Guide | Royal King SeedsMale cannabis plants show pollen sacs (small clusters of balls) at nodes within 1-3 weeks of flowering; females show white pistils. Spot the difference early to protect your crop — or buy feminized seeds to eliminate the risk entirely.sexMar 17, 2025Triploid Cannabis Explained, Yield, Potency & RisksTriploid cannabis seeds promise bigger yields and seedless flower, here's what the data actually shows on potency, terpenes.
Harvest & Curing
3 articlesharvestJul 23, 2026How to Read Trichomes for Harvest | Royal King SeedsHarvest cannabis at peak potency by reading trichomes: clear = too early, cloudy = peak THC, 10–30% amber = maximum effect. Use a 60–100x loupe or digital microscope.harvestJul 21, 2026How to Flush Cannabis Before Harvest | Royal King SeedsFlush cannabis plants 7–14 days before harvest by running 3x the pot volume in plain pH-balanced water (6.0–6.5 soil / 5.5–6.0 hydro) to clear nutrient salts and improve final flavor.harvestJan 11, 2025What is Dry Farming?What is Dry Farming?: This article focuses on the practical decisions most what is dry farming?
