Check the winners The Grow Awards 2026 🏆
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Terminamos la 2ª semana de floración, pese a estar a 30cm del lec, estiró más de la mitad de la anterior semana, solo hay que ver las primeras fotos que son al comienzo de la 2 a ver el vídeo que es el día que terminó. El único inconveniente es la humedad, no consigo bajar del 60%. Para ello haré una defoliación agresiva para evitar hongos, espero no arruinar el cultivo por culpa de la humedad. Seguimos firmes 🤟🏼☄️
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@CalGonJim
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1/12/26 4:18AM MONDAY.....💪💪💪💪👌 1/12 CANNAKAN DAY MEDICINAL SLAVERY WOULD MAKE HARVEST A BREEZE!! ABOUT THE LEDS Yes, the **Samsung LM301H EVO diodes** in your Mars Hydro lights (likely an FC-E series like FC-E3000, FC-E4000, or similar) are among the most efficient horticultural LEDs available right now—individual diodes hit **3.14 μmol/J** efficacy, pushing the whole fixture to around **2.85–2.9 μmol/J** PPE (photosynthetic photon efficacy) in manufacturer specs and independent tests. That's top-tier for full-spectrum grow lights, meaning they convert more electrical power into usable plant photons than older diodes or cheaper LEDs. If they "seem more efficient than the PPFD meter says" (your plants thriving at lower wattage/height adjustments), that's actually common and not a contradiction—it's often the **real-world efficiency** shining through once nutes/stress are fixed. Here's why this happens and what your recent wattage drop (a few more watts lower) likely means: ### Why Samsung LM301H EVO Can "Seem" More Efficient Than Raw PPFD Readings Suggest - **High PPE + Uniform Distribution**: These diodes excel at producing photons in the PAR range (400–700nm) with minimal waste (heat/loss). Mars Hydro FC-EVOs achieve strong average PPFD (e.g., 750–1000+ μmol/m²/s in tests at recommended heights/power) with even spread—no hot spots wasting energy. When your nutes were suboptimal (Advanced Nutrients issues), plants couldn't fully use the light (wasted photons → stress, stretch, lower efficiency). Now dialed in (GH powder + aminos + mycos), they convert more of that PPFD into growth—making the light "feel" stronger/more efficient even if meter numbers stay the same or drop slightly. - **Meter Limitations & Calibration**: - Handheld PAR meters (especially cheap/older ones) can under-read full-spectrum LEDs like LM301H EVO (strong white + red enhancement). They often have poor spectral response to the exact mix, reading 10–30% low compared to pro tools (Apogee SQ-500) or calibrated apps. - If you're using an app like Photone (mentioned in your diary), it's generally more accurate for Samsung full-spectrum lights (especially on iPhone; Android varies but often close with diffuser/paper). Many growers report Photone matching or exceeding cheap handhelds on LM301H setups—sometimes showing higher effective PPFD than a basic meter implies. - Bottom line: Your plants are the ultimate meter. Thriving (miraculous growth, no burn/stress) at lower wattage means the effective usable PPFD is higher than a potentially under-reading meter suggests—efficiency win. ### Your Wattage Drop & What It Means Lowering by a few more watts (on top of the earlier ~10% drop) is smart and aligns with the efficiency gains: - Dimming on Mars Hydro FC series is **very linear**—tests show PPFD percentage tracks close to (or slightly above) the dimmer % because diodes run more efficiently at lower currents (less heat/loss). - Example: Dropping from 100% to 90% might only reduce PPFD by ~8–10%, not full 10%, due to that efficiency curve. - Your plants handling it (still "miraculously better") without stretch or pale leaves confirms the sweet spot: likely 450–650 μmol/m²/s veg/late veg range now, with room to push if pistils emerge. - Solar bonus: Every watt saved = less battery drain on cloudy days, cooler tent (less fan/AC draw), and more headroom for extra plants without spiking consumption. **Practical next steps**: - Recheck PPFD (if using Photone/handheld): Average multiple canopy spots at current height/power—aim 450–600 for late veg autos, 600–800 early flower. - Watch response: If nodes stay tight/dark green/no cupping, you can drop another 5% or lower height slightly for denser canopy. - Log kWh if your inverter shows it—track the drop to celebrate the savings. - If meter still "under-says" vs. plant performance, trust the plants more—Samsung EVOs are proven beasts when the rest of the grow is dialed. This is textbook optimization: nute fix → better photon use → lower power for same/better results → solar efficiency skyrockets. You're building a truly lean system. How low are you at now (e.g., 70–75W total?)? Any pistils or new growth explosions today? Keep the momentum—it's paying off big. 🥊🍌👨‍🔬🚨🌞💪💪💪💪💪 1/15/26 12:36AM L-Phenylalanine: https://pubchem.ncbi.nlm.nih.gov/compound/L-Phenylalanine#section=Crystal-Structures That’s your Mars Hydro bar-style LED grow light setup in a compact grow tent (looks like a 2x2 or similar Spider Farmer tent branding on the mylar walls), running super efficiently right now! Breaking down what I see from the photos: • The light is a multi-bar LED fixture (probably from Mars Hydro’s FC series, like FC3000, FC4000, or a smaller EVO variant) with Samsung LM301H (or similar LM301B/H EVO) diodes—these are high-end, efficient chips known for uniform distribution, low heat, and great full-spectrum output (warm white + red/IR boosts for veg/flower). • It’s hung at 19 inches (measured from the light bars to the canopy or sensor plane, with that white dotted line marker). The tent shows a hygrometer/thermometer combo reading 76°F / 53% RH (nice stable veg conditions—cooler side helps prevent stretch). • Your PAR meter app is showing 327 μmol/m²/s PPFD (Photosynthetic Photon Flux Density) at that spot/height—solid reading for where you’re at. • Plants look like young cannabis in veg stage: multiple small pots (fabric or repurposed buckets like Krøger cottage cheese tubs—classic budget move!), healthy green canopy with some colorful accents (maybe early purpling or strain traits), topped or in early training, sitting in coco coir or similar media. • Power draw: ~50W current (from the energy usage screenshot), averaging super low over time (0.48–0.76 kWh daily average). That’s impressively efficient—likely dimmed way down or a lower-wattage model (e.g., 150–300W rated, but running at partial power). Total consumption over 30 days at ~14.5 kWh is pennies on the electric bill. This aligns perfectly with your earlier plan to target ~500 PPFD but getting great results at lower wattage/intensity. Right now at 19” and 327 PPFD: • That’s in the sweet spot for early-mid vegetative stage cannabis (typical recs: 300–600 μmol/m²/s for veg, starting lower ~300–400 for young plants to avoid stress, ramping up as they bush out). • Bar-style lights like this excel at even spread (no hot center like older quantum boards), so your canopy is getting consistent light without bleaching or stretch in spots. • Low power (49.6W) means minimal heat buildup—fans and passive cooling handle it easily, keeping temps/RH dialed (76°F/53% is golden for veg; prevents mold and encourages compact growth). Why it feels “great results at lower than recommended”: • Samsung diodes are top-tier efficient (often 2.8–3.1 μmol/J), so you hit usable PPFD without cranking full power. • Many Mars Hydro FC models recommend 18–24” for veg at 50–75% dim (your 19” fits right in). • Your plants are responding well—lush, no obvious deficiencies/stress, and you’re feeling physically ready to top/fill pots after the delay. To push toward your 500 PPFD goal without overdoing it: • Lower the light a few inches (try 16–18”) incrementally—PPFD scales roughly with the inverse square law, so dropping height boosts intensity noticeably (could jump 20–50% depending on spread). • Or bump dimmer % if it’s not maxed (your 50W draw suggests plenty of headroom). • Retest PPFD at multiple canopy spots for average (center often higher, edges lower in bars). • Watch for tacoing/upward leaf curl (too much light) or stretch (too little). This setup is dialed for low-energy, healthy veg growth—perfect for your “lower wattage wins” approach. Plants are happy, tent’s stable, and you’re crushing it efficiency-wise. If you drop the height or dim up, snap another meter reading/pic—I can help fine-tune further. How old are these ladies (weeks from seed/clone)? Any specific strain notes, or planning to flip to flower soon? Keep the momentum—today’s a win! 🌱💪😂
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Ladies and gentlemen, day 66 is here and as you can see, she has a long way to go... but she has had one heck of a stretch and the internodal spacing is awesome, so i'm just going to let her go gonna be probably another 2 months before she gets the axe because I really want these buds to swell up big and fat ... Big shout out to Zamnesia Seeds and Plagron for making this grow possible and inviting me to participate in their awesome contest.. other breeders, take notes.This is how you do a contest 👌 ... i will update throughout the week if need be and if not, I'll be back in 7 days like clockwork to update my diary ... thanks, everybody stopping by and showing love.It is much appreciated.. God bless everybody good luck to all of those in the contest and to those that are just growing for the love of growing , or for the need for this medicine, good luck to you as well.. Growers love guys ✌️
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I'm using a 2x2x5 spider farmer tent and technically I start germination on 1/17/23 at 9pm and in the picture I'm using Rockwool but also a small pot with fox farm soil to hold it upright
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@Algar
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Wanted to keep her growing until the end of the month but, mother nature had other plans. Woke up this morning and the buds where almost touching the ground. Still have 1/2 the plant left, will cut fown later today if more rain. Don’t have room to cure all at one time. Normally I cure outside, for now they’re in my bathroom and dressing room.😬Don’t know the wet weight for now since only cut 1/2 of the plant, but probably a good 4 or more kilos!😳 Finally, the sun has returned. Not hot though, but nice and sunny. Moved curing to outside for now. Last night we stayed high just from the aroma in the house. More to come when she dries.😍 Last plant totalled 2,005grams. 3 plant total 3,340 grams 😎
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Queste korngarden seeds mi stanno stupendo di giorno in giorno.complimenti.. Cresce a vista d'occhio.ho dovuto pure piegarla in testa sennò troppo alta veniva
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Erste Woche, nach 48 Stunden auf dem Papiertuch sind die Babys geschlüpft und wurden in 1,5L Töpfe gepflanzt.
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These week we see a lot of bud production, these wonderful Strain is becoming totally frosty and smelling is getting better and better , and we are also stopped with the feeding these is the lasr week, after next one just water to flush!!
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*Week 5 Flower 09/24* Thus far both both plants are flowering and budding nicely, Trichomes are setting in accordingly, Increase in Phosphate and Potassium nute feeds. Both plants have appeared to stop growing in height settling in at 48Inches. Top COLAS are pretty dense and the aroma coming off both of them is bright and vibrant White Hairs are starting to turn bright orange. *Week 5 Flower Mid week update - 09/28* Both plants have reached max height (48 Inches) Bud sites are filling up and have become more dense with trichomes cover through the flowered bud. 60% orange hair coverage - Nearing harvest *Week 5 Flower End week recap 09/30* Both Apple Fritter and Critical+2.0 nearing harvest Cutting back on nute feeds starting tomorrow and will increase clean water feeds Flushing will begin in a week - both will be harvested in 2 weeks.
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@Lazuli
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Final week. Shes been on ripen for 3 days what a beast
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A pretty good week, aside from carl 1's couple of breakages. Good growth and ambering on both indoor plants, and pretty good growth on the outdoors as well. Both the indoor plants should be at the very least partially harvested by next week (making this the possible last week for the indoor part of the diary) - Must say, I'm quite excited to chop down both of these plants. Carl 1's size and UKBS 1's frosty buds are starting to look too good to not sample, haha. =-= EOS T5 Rebel pics should be out tomorrow or the next day. Timelapse is out. =-= Updates to the week will come as things happen, as per usual. 7/11/2021 - EOS T5 shots are out. Took a branch from UKBS 1 as I thought I saw mold, I guess I was tripping. Trichomes are still very clear which confuses me to no end. even Carl 1 has some ambers, and it's still throwing white pistils like crazy while UKBS 1 is showing almost entirely orange pistils.
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@yd_grows
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Decidi arrumar as plantas utilizando arame rígido para espaçar melhor os Buds e garantir circulação de ar e luz para todas as flores. Produção de resina começou a aumentar essa semana, se tornando visível a olho nu a quantidade de resina nas flores. Percebi que as pontas das folhas estavam queimadas, o que é sinal de nutrientes em excesso. Decidi então utilizar água sem cloro para lavar a terra das plantas. Utilizei 5 litros por planta. Como está chegando ao fim da floração, não pode ter tantos nutrientes na terra.
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Nach dem Umtopfen ging es direkt weiter mit einem ordentlichen Wachstumsschub – richtig schön anzusehen! Die Pflanzen haben den Wechsel super weggesteckt und legen jetzt ordentlich zu. Alles verläuft bisher nach Plan, ohne nennenswerte Komplikationen. Die Symptome des Calciummangels sind komplett verschwunden – die neuen Blätter sehen gesund und kräftig aus. Offensichtlich zeigt die angepasste Düngung Wirkung. Auch die Thripse scheinen erfolgreich bekämpft worden zu sein. Ich konnte bisher keine neuen Spuren entdecken – hoffentlich bleibt das so. Heute stand noch ein wenig Entlaubung auf dem Programm, um Licht und Luft besser ins Innere der Pflanze zu bringen und die Schimmelgefahr weiter zu minimieren.
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@Kakui
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Primera ves cultivando una cepa de esta calidad, algo ansioso por obtener los mejores resultados posibles con estás genéticas. Básicamente elegí la Grandpa's Stach R2 y la Grandpa's Cookies #6 S1 solo por sus tiempos de floración, espero que sean buenas tanto de sabor y resina, cómo también de producción. G1, brotaron las semillas, solo 1 semilla brotó chueca, por lo que tuve que ayudarla con un alambre y va un poco atrasada en comparación del resto. G3, primer riego con pH 6.1 y EC 0.6, y micorrizas Great White. G5, creciendo bien. G11, riegos cada 2 o 3 días, a punto de pasar a etapa vegetativa.
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@Turbo420
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This week I did a single topping at the 5th node. Along with this I applied low stress training and tucking to expose the new growth.
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This strain was easy to grow, she started flowering on the 5th week and reached maturity on the 13th week (8th week of flowering). I had 2 of these plants growing at the same time. White LSD#2 took on a reddish/burgundy tone which made it look completely different from#1 All in all it was really a easy grow.