The Grow Awards 2026 🏆
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Views expressed are my own. All opinions are my own. The opinions expressed here belong solely to me and do not reflect the views of Growdiaries or Grandcru Genetics. The cannabis strain Grape Guava can be a purple strain, depending on its specific phenotype and genetic makeup. While not all phenotypes of Grape Guava are purple, some variations, such as the Zatix Grape Guava, are noted for their striking purple appearance due to the genetic expression of anthocyanin pigments. Grand Cru Genetics is a cannabis seed bank that emerged in 2018 from a group of breeders in Madrid to provide a satisfactory experience to all cannabis users. "If we do things, we do them well. Due to our experience in the sector and our taste for excellence, we know high quality and we seek it in everything we propose and do." "We have a “cultivate without giving up” philosophy that we apply to everything we do. We do not give up, we are friends of change, and we adapt as necessary in a still restricted sector." "We speak relaxed because we know how to relax. We are not intense or preachy; we accept everyone as they are, and we understand that farming is not for everyone. But for those who do, we are here to accompany you. We like to do it and tell it. We are experts in the field because we are the first to do it. We speak from experience and connect with others because we share the passion for cultivation." "Cannabis has the ability to show us a world of possibilities. When you cultivate and live its growth process, you enjoy a path full of emotions and not just the final destination. At Grand Cru we find beauty in small things. We are attentive, observant, detail-oriented and aware of everyday things, and we savor them without rushing." In a garden of green, Grape Guava gleams, With its fruity aroma, enchanting dreams. Clusters of grapes, guava's sweetness ignite, A strain so divine, in purple and white. Euphoria whispers, a lush fruity haze, Grape Guava's embrace, a tranquil daze. Off and away.@1400ppm. The increased CO2 allows plants to thrive at higher temperatures, which in turn necessitates higher humidity to maintain the ideal VPD for healthy growth and transpiration. 80F -5F = 75F LST with 70% RH = 0.72 kPa. Higher temperatures and humidity promote rapid growth, nutrient uptake, and photosynthesis while maintaining a lower stress level. Temperature influences the rate of enzymatic reactions involved in aerobic respiration. Enzymes, such as those involved in glycolysis, the Krebs cycle, and the electron transport chain, work most efficiently at an optimal temperature range. In low temperatures, enzymatic activity will slow down, thus reducing the rate of aerobic respiration. In high temperatures, enzymes can become denatured, thus impairing their function and stopping the process of aerobic respiration. Glucose is the primary fuel for aerobic respiration. The rate of aerobic respiration increases with the availability of glucose, as it is the starting point for glycolysis. If glucose levels are low, cells may rely on alternative energy sources such as fatty acids or amino acids , but these processes may yield less ATP or be less efficient. To determine this effect, carbon dioxide volume was measured (as carbon dioxide is an output of aerobic respiration) 18/6 with the 6 being IR. The near infrared (IR-a) borders around 700nm up to 1400nm @ photon par flux density of 1.8 instead of darkness, keeping temps overnight a neat 77F-80F. I think of my tent as a lung. What goes in must come out. When the rate of air going out exceeds the amount of air coming in, it creates a negative pressure. Tent concaves (bends in). If set up correctly, the RH will begin to drop slowly to the desired level I set, and the extraction turns off when it reaches the desired RH. The plant, as it performs cellular respiration, will always release more water into the air; therefore, the RH% of the tent overnight will increase, as long as oxidative phosphorylation is occurring. As soon as the RH% creeps back up to 55%, the extraction turns back on, over and over. This creates a strong pressure differential, which will work wonders with mass flow. Replicating high and low-pressure fronts in nature. Critical for oxygen diffusion at the critical time of peak cellular respiratory function.. Moisture will not transfer from a saturated atmosphere to another if that air is already at or above its saturation point, meaning the air can't hold any more water vapor. Once I understood that water is produced as a by product during cellular respiration, specifically at the very end of the electron transport chain (ETC) where electrons are finally transferred to molecular oxygen, the higher the RH of the air, the more resistance there is for more moisture to be added to that environment, and effects the ease with which it does so. But none of that water comes from the pot; it's pulled from the air. If you run high daytime RH, your medium/pot is 100% reliant on transpirational root pull to move water. ZERO evaporation happens across the atmosphere if the tent air has high RH%, the medium cannot release its water through evaporation. Once a canopy develops, light no longer slowly wicks and evaporates from the topsoil. The Soil-Plant-Atmosphere Continuum (SPAC) describes the continuous pathway and process of water movement, driven by a gradient in water potential, from the soil, through the plant's roots, stem, and leaves, and finally evaporating into the atmosphere through transpiration. There is evaporation, there is transpiration, and then there is evapotranspiration; Evapotranspiration (ET) is the combined total of two processes: evaporation (water lost directly from soil and surface water into the atmosphere) and transpiration (water released from plants to the atmosphere through their leaves). Evapotranspiration represents the total amount of water that moves from the medium into the air. There is no such thing as a medium with too much water, only a medium that retains too much for too long. The water must always flow efficiently from one atmosphere(Medium) to another(Air) in a timely manner. Moisture is a critical factor for bacterial growth and decay. Dictating how long it's allowed to sit in any one location for any given period is a key preferred control. To ensure a net reduction in a bacterial population, the rate of removal (ET) must exceed the rate of bacterial growth (decay rate), which is often modeled as a growth rate for the specific bacterium under the given conditions. By optimizing daytime VPD, we also optimize conditions for bacterial growth to explode exponentially above 77°F.. If water is allowed to sit in a medium without an escape within a timeframe, nothing good will happen. IF High RH is maintained overnight as well as during the day, placing 100% of water movement at the behest of daytime transpiration, roots can only pull where they can reach, and if soil is compressed above a certain point, moisture will become trapped in a medium with no way of moving day or night. This will begin the countdown for decay to take hold. When water stagnates in a medium, it loses oxygen, creating anaerobic conditions that foster the growth of harmful microorganisms like bacteria and fungi, which can produce toxins and disease vectors. Thigmomorphogenesis, the process by which plants respond to mechanical stimuli like touch by altering their growth and development, results in significant morphological changes to improve survival against mechanical perturbations. This complex response involves sensing touch and initiating physiological and genetic responses, leading to changes in form and structure over days or weeks. The process is triggered by physical forces such as wind, rain, or touch. Plants adapt to these stimuli by changing their shape and structure, which may include slower growth, thickened stems, or altered leaf development. Plants possess sophisticated mechanisms to detect even subtle mechanical stimuli and initiate responses. A variety of molecules, including calcium ions, jasmonates, ethylene, and nitric oxide, are involved in signaling these mechanical inputs. Touch can induce the expression of genes that encode proteins for calcium sensing, cell wall modification, and defense mechanisms. A plant exposed to constant wind may become shorter and sturdier. A plant that is touched frequently might grow more slowly to conserve energy and develop thicker cell walls. These changes increase a plant's resilience and ability to survive in harsh environments. Let's get Thiggy with it.
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@EgoDeath
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Took some more foliage off, she is about 95 cloudy 5 amber on the tops so we got like 1 or 2 weeks left before the chop, started slowing down on the nutes and just topping the rezzy with water and will start flushing 2 days before I decide to harvest but I think we will call her good next Sunday and chop at 16 weeks if everything is looking good!
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Hella closeups this week for ya guys, enjoy the view! Crystals all over and Thea putting on some serious weight. Had to Flush the two yellow ones two days ago think theyre doing Fine by now. Theyll get another round of plain water and then nutes again.
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pics are from right before harvest on day 60 of flower. 9.5 weeks of flower
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@420keef
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The spider mites have done alot of damage to my garden, i got rid of most of them though but just a little too late. Also the plant i took out of the tent started drooping and yellowing very fast so i flushed it but don’t know what caused it if anyone has any tips let me know thank you & btw am i the only one who had his white widow turn purple? I’ve never seen it before
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After some research I decided to go for Advanced Nutrients for all amendments. Starting slow and building towards flower, then adding some Bud Candy. These plants really took off lol, shit got out of hand and I let them run a little, I'm definitely a habitual defoliator, I cant stop clipping when I really should just let them be, anyway I moved the tent out of the Closet space as its a friendlier time of year so they don't need the extra protection, kinda why I let them go, Season 1 needed to be smaller in height as they would have suffered outside the tent. Still topped and administered some LST, tried some clips out, but they were far too small and ended up snapping a stem. Would like to give them a go again but will research a bit more next time and not just go for Amazon crap. So far in terms of holding things down I really like the early pegs in the soil approach. I also tried some trellis netting this time, definitely like it and will be more prepared next time. Had to bail for an Easter break so a buddy came through and watered in nuets for me. SKOG was noticeably more Sativa-esque, thinner, stretchier. Runtz with the fatter leaves.
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Hey! Welcome to week 9 for Karen! Week 8 is now complete so please go and check it out 🙏. Big week last week... massive. Day 57: Fertigated 6l. Height 40cm. Day 58: Scent has stepped up again and I'm noticing some of bud sites starting to develop frost. Day 58.5 Flushed with 20l of PH & CalMag. Day 59: reorganised tent Day 60: Fertigated 3l. Karen has put on a load of frost in the last 24h. I mean seriously. Smell stepped up again. Height 44cm. Day 60.5: I have had a really good look at other KKA grows. I think Karen is going to need a few extra weeks. I think she will be ready for harvest in about week 14. So I think we have about another 4-5 weeks to go. Day 61: Adjusted the LST a bit. She's frosting rapidly now. 😍😍🤩 Height 45cm. Width: 60cm x 70cm Day 61.5: It is only 8 days since I *heavily* defoliated and I think I probably should do it again already. Things are progressing well at the moment though so I am trying to resist doing it too soon. She is still stretching. Day 61.75: Right, I have done some research and I have made a decision,. I'm going to give Karen 2 full weeks from the last defoliation on day 53, so on day 67 (i.e half way through next week) I will defoliate and perform final LST just to space out the colas a bite more at the "top" of the plant. Incidentally, Nesia is now easily the same spread as Karen.. Nesia is going to be much bigger than Karen. Check out Nesia here: https://growdiaries.com/diaries/161801-grow-journal-by-unorthodoxdude If you are interested in the stunted Big Bang Auto - Bertha - who is 2 days younger than Karen, check her out here: https://growdiaries.com/diaries/158111-grow-journal-by-unorthodoxdude - in the current week I have added various photos of the non-cannabis plants in my tent. Who knew basil flowers were so pretty? 😊 Day 62: Fertigated 3l Day 63: Height 47cm width 65cm x 75cm Week Summary: Another big week with a plant barely recognisable from herself a week ago. As well as the ongoing stretch she has started to frost over this week and I am hoping this continues because more and more is appearing all over the place.
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@Growin_it
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Last day before harvest after a couple of days rest in the dark. Will harvest later today.
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I have been super excited with everything up to this point . I have made all my preparations that I think need to be made and did some trial runs on my environment. I starting preparing around the 15th of January and my set up was complete around the 19th of February. I spaced my purchases out based on budget constraints. I wanted a cheap and efficient grow area. Some thing I paid more for because through all the research I did I felt quality was more important. If you are as excited as I was, you get pretty anxious when awaiting order status when you first order your seeds. You should remember you are ordering from an online seed bank not amazon. Most work Monday - Friday and are in a complete different time zone. I ordered my seeds from seed supreme Seedbank. I placed my order on 31 January and mailed money as directed. This was the scariest part for me especially when I didn’t hear anything back. I finally received a email on the 12th if February saying my invoice was paid and then subsequently mailed out on the 15th and I received on the 20th. One thing I would like to note that recommend to anyone mail cash is to make sure you spend the extra cash and track your payment. I’m currently germinating all five GSC I received I placed them in water for the first 24 hours and then a paper towel for approximately 40 Hours. I’ll add links to most of the items I purchased below. Some items I purchased through offer up and let it go app to save money. VIVOSUN 48" X48" X 80" Hydroponic... https://www.amazon.com/dp/B07GNBCVPZ?ref=ppx_pop_mob_ap_share LED Grow Light 1000W Full... https://www.amazon.com/dp/B074MBP32M?ref=ppx_pop_mob_ap_share AcuRite 00613 Humidity Monitor... https://www.amazon.com/dp/B0013BKDO8?ref=ppx_pop_mob_ap_share Hydrofarm Grow!T Premium Coco... https://www.amazon.com/dp/B01DA4PZI4?ref=ppx_pop_mob_ap_share iPower LGTESTSOIL 3 in 1 Soil... https://www.amazon.com/dp/B075LRY5M7?ref=ppx_pop_mob_ap_share Unco Industries (WWSB15LB) Wiggle... https://www.amazon.com/dp/B00062KQ42?ref=ppx_pop_mob_ap_share General Hydroponics pH Control Kit https://www.amazon.com/dp/B000BNKWZY?ref=ppx_pop_mob_ap_share VIVOSUN Air Filtration Kit: 4... https://www.amazon.com/dp/B06XFRNPR8?ref=ppx_pop_mob_ap_share VIVOSUN pH & TDS Meter Combo, 0.05ph High Accuracy Pen Type pH Meter & +/- 2% Readout Accuracy 3-in-1 TDS EC Temperature Meter https://www.amazon.com/dp/B06XKMH86J/ref=cm_sw_r_cp_api_i_2xyCCbK4MKNN4 Botanicare CAL-MAG Plus Plant Supplement 2-0-0 Formula, 1 Quart https://www.amazon.com/dp/B004JKBMRW/ref=cm_sw_r_cp_api_i_LyyCCbY8SMFTK Century 24 Hour Plug-in Mechanical Timer Grounded https://www.amazon.com/dp/B00MVFF59S/ref=cm_sw_r_cp_api_i_ozyCCbHG8Q2PB Day 1 - 2/23/19: I planted my seeds today about a fingernail length down with tap root pointed and gave a light watering with plain tap water at a PH of 5.8. Day 2 - 2/24/19: Nothing new to report no activity on the surface, misted watering at 5.8 PH. Day 3 - 2/25/19: Plant number 1 which had the longest tap root broke the surface I started a time lapse on it to cover the first moments of birth 😭 daddy is already so proud lmao. I have another light watering today with my humidity domes on, the intent is to have the plants roots work to get the required water and hopefully promote root growth. I also added 1ml of Rapid start and diluted into 1 gal. Day 4 - 2/26/19: Checked the status this morning prior to work and two more have reached the surface only two more remaining which I suspect will reach by the time I make it home from work. Misted this morning pot was looking pretty dry with the exception of the humidity domes, which I removed on all the sprouted seedling. I intend on shifting to a 20 on 4 off cycle and starting my other fans. Day 5 - 2/27/19: All five plants have broke the surface. I did a normal watering this am still utilizing the dome to avoid watering on top of the plants. I lowered the light again some of the early sprouters we stretching a little more than I wanted and appeared leggy to me. Day 6 - 2/28/19: Nothing really to report today. Excited for the name reveal tomorrow. I did a light watering. I played around with my ppm meter and ec I definitely plan on using in conjunction with my first feeding this weekend. Day 7 - 3/1/19: Was watering this morning normal levels. I also mixed a new feed to be ready for them tomorrow. While I was watering # 5 fell over I accidentally tipped it with the spout. I grabbed some left over soul to help prop it up hopefully she is ok.
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@gr3g4l
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Una semana tranquila y con pocos cambios. Se hizo una ultima poda de algunas pocas hojas abanico y poco mas. esta semana a mediados empezó a mostrar los tricomas claramente, hasta entonces fue difícil de verlos.
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She is so nice from all aspects how she grow,the leafs and flowers site. Really happy with this plant now she need 6 more weeks to finish
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Growth has continued at a great pace... Can't wait to see what these buds look like in the end.
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@NanoLeaf
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Started Training Late! Was on summer holiday for a week and only started training now. Above are the plants during training as well as a few hours after training. Autos are definitely more delicate and the two runts are growing slow but yet still showing some progress. Changed my bulbs back to the CMH set to 400w each (2) Also gave them a good amount of water as the FloraCaps aren’t covering the whole pot I felt like it was necessary to wet the entire grow medium well for a change. Some of them were a bit far along for training but I did the best I could. Also the Purple Lemonade and 2 other plants are showing signs of flowering.
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Another good week Everything is going to plan Only slight issue we come across was Temp drop in lights off period in the small tent we just got another gas environ controller 👌👌 problem solved But apart from that everything is spot on
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This Gorilla bomb is come from cloning. In veg. stage, she was trained by using LST at the early veg. stage and then using ScrOG net and a little HST on some stem (Super cropping). Now flowering stage, she was lollipop 1 week before I'm flip light cycle from 18/6 to 12/12.
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Day 85 23/09/24 Monday De-chlorinated tap water pH 6 and calmag today. Day 87 25/09/24 Wednesday Feed today using de-chlorinated tap water pH 6 only. Day 89 27/09/24 Friday De-chlorinated tap water pH 6 with Plagron PK13-14 today. Picture and video update 😎 Day 91 29/09/24 Sunday (End of week) De-chlorinated tap water pH 6 only today. Will start only water next week 👌💚 picture 😎