distractedgrower After getting fed up with the labour intensive, extreme-budget route I chased in the past and giving up, I finally invested in more of a proper hobby grow setup. I have only ever grown in Promix with bottled nutrients, and for the small (although good) returns I was receiving it just wasn't worth it. So after a bunch of research (and help from a lot of great people) and actual planning this time around, I am going to attempt to run some quality autoflower genetics, in bottom-watered water only living soil under 24 hour light. My first attempt at living soil, first attempt at autos, first attempt with a real controllable environment, real light, basically my first attempt. 😅
I threw the 2 beans in a solo cup with non PH'd, non de-chlorinated tap water and put them in the cupboard above the fridge just before midnight. The following day I put the tent together and amended the soil and very lightly watered the top of the soil. 24 hours later, no taproots but both seeds have sunk to the bottom. Planted them both about 1/2" deep, misted the inside of of some clear plastic sups and placed them over top as humidity domes. Temperature seems to have settled at about 25C 68% rh with a bit of visual condensation on the cups. Exhaust fan isn't currently running although is set to come on at 27C or 80% rh, and it will be turned on at first sights of life as well, just want to keep it humid in there as my room is fairly dry.
The recipe I received from an amazing person on reddit, the mix for each 5 gal pot was roughly:
5 gal Promix HP
2 cups Perlite
6 cups Worm Castings
7 tbsp GG All Purpose 4-4-4
3 tbsp GG Power Bloom 2-8-4
6 tbsp GG Glacial Rock Dust - hopefully this will start adding some beneficial silica after a couple of recycled runs
I plan to top dress (worm casting, GG amendments) and top water every few weeks as well. I am keeping the feed light my first few runs as I've heard most autos can be pretty picky early on.
The 300w light is currently about 28.5" above the soil running at 20%. Photone says the soil surface (current "canopy" level) are getting about 11 DLI in each pot. The coverage of this light in a 4x2 is super impressive, PPFD in corners is only about 100ish difference from the center, so so so much better than that old blurple I had.
I plan on doing light lst, enough to get an even canopy. It's going to be hard because one of my favourite parts of growing is forms of hst. I will likely lollipop sometime around stretch.
I have the cheapo Vivosun amazon special PH meter, after calibration it says my tap water seems to be somewhere around 6.6-7.1, so I am just going to let it off-gas the chlorine for 24 hours before watering and that's it.
In about 2 weeks I will have a carbon filter and AC Infinity self wicking bases, which should be just about in time. I will switch back to top watering for a few days after every top dress, but will just keep the bases topped up all the time.
July 23 Update: just over 48 hours after burying the beans they have both sprouted. Temps have been about 25C with 70%rh. Gave them a couple of minutes of air today, tomorrow I will likely prop the cups open slightly for the day and probably remove the following day.
Sorry for the novel, I like details, and these are some of the things I look for in Diaries when I'm looking up cultivars.
I am open to any and all criticism and feedback as well please, I appreciate it!
Mind the canopy, see you in the garden!
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Used method
Glass Of Water
Germination Method
1
Week 1. Vegetation
14d ago
1/5
5.08 cm
Height
24 hrs
Light Schedule
22 °C
Day Air Temp
No Smell
Smell
70 %
Air Humidity
18.93 l
Pot Size
55.88 cm
Lamp Distance
distractedgrower It has been 7 days since these ladies emerged through the soil. They do seem to be going a little bit slow, but I believe that is because of my environment. The tent is in my bedroom, which also happens to be a loft. It is quite warm up there so we have an A/C unit running at 20-21C 24/7 throughout the summer. This has made it difficult to keep my temps up during the seedling stage.
So far my temps have been sitting around 20-23C, controlling my humidity with a humidifier from 65-75% to keep the VPD within the 0.6-0.8 range.
After taking some advice from other growers, I decided to lower the height of my light today to about 22" above canopy. I did this just to try to increase them temps at the plants, and I seem to be sitting between 24-25C now! After lowering the light, DLI is just below 20, PPFD is 200.
Just plain tap water, roughly 150ml per plant every 2-3 days once soil is fully dry again, watered in a ring about 3 inches away form the plant.
My original plan for this grow was to top one plant and just LST the other to see the differences. But I think I want to get a better understanding and maybe atleast a harvest or 2 before i start introducing high stress to them. That being said, I think my new plan with this grow is to LST both plants, try to keep them as similar as possible, but feed them differently. My recipe for my Gaia Green amendments is roughly 1/2 strength of what they recommend, so maybe i will top dress one with my recipe and one with GGs suggested dosage.
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2
Week 2. Vegetation
7d ago
1/8
5.08 cm
Height
24 hrs
Light Schedule
25 °C
Day Air Temp
No Smell
Smell
68 %
Air Humidity
18.93 l
Pot Size
66.04 cm
Lamp Distance
distractedgrower Day 14 from sprout.
I think my cooler temps (21-23C) slowed them down a little bit to start. Despite the exhaust fan only being on 1, with the LED driver being outside of the tent and the light only being at 20%, it was hard to get temps up those couple of extra degrees.
Yesterday I took the advice of a fellow autoflower grower and increased my light to 60% and I raised it up to about 26" above the plants. I am now hitting them with 420ppfd or roughly 35dli, which i know is high but i am keeping a close eye on them the next couple of days. It has brought my temp up to 25C now and 24 hours later they are looking happy so far. I think I've actually seen more growth over the last 24 hours than i have the last week, but still keeping a close eye on them for any signs of light stress.
Watering has been roughly every 3 days, I still haven't really given these ladies a good full watering yet (over-watering trauma lol) but have increased it and they have received about 500ml each the last 2 feedings. I think they'll be ready for more tomorrow and I think I'm going to give them a good half gallon each. First topdress is next week!
Even though they have started off a little slow, i am still really excited and hopeful for a decent "first" harvest!
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3
Week 3. Vegetation
1h ago
1/6
15.24 cm
Height
24 hrs
Light Schedule
25 °C
Day Air Temp
Weak
Smell
65 %
Air Humidity
18.93 l
Pot Size
0.95 l
Watering Volume
76.2 cm
Lamp Distance
distractedgrower Well raising the light intensity to 60% may have been a bit too much for them, leaf edges started curling up so I raised the light about 6" after 48hrs. I think they responded well, at day 21 I think they might be happy and hitting their stride. Just plain tap water, about a gallon each seems to be about every 3-4 days. Will do first top dress in a couple of days after it dries out a bit. The slightly bigger one is starting to push out pistils already, I hope they get a bit bigger before they stretch.