By continuing to use the website or clicking Accept you consent to our cookies and personal data policy and confirm that you are at least 18 year old. For details please see Privacy Policy and Terms
This is my first ever grow and week 1 was a success, all 3 seeds germinated and sprouted together!
80x80x160cm tent (2.5x2.5ft), P1000 Viparspectra LED (100W), 2x inline 4" fans (in/out airflow), 1 oscillating fan for circulation.
Light at 24" and 40% on a 20/4 cycle. Struggled to keep the temp up during lights off, so added a heater on day 6. Used humidity domes for the first few days to keep humidity levels up.
Week 2 seemed to go well, all 3 plants growing nicely.
PH-adjusted watering to 6.3-6.5 (no added nutrients yet). Light increased to 60%. Managed to balance out temp so it stays between 24-20º. Humidity is low, but I'm spaying the tent walls constantly and adding a few bowls of water near the intake fans to hopefully avoid needing a humidifier.
One plant is showing a darker leaf that's twisting a little, not sure if it's light stress or maybe nitrogen toxicity, but I haven't added any nutrients, just what was in the soil from the bag.
Week 3 didn't go as well as I hoped.
Plants are growing well and i Increased the light to 75%, but I'm noticing more twisting of the leaves and some spots on the bottom right one. Worried it was a deficiency, so I gave them their first dose of nutrients: 1/2 dose of BioBizz Grow on day 16.
A few days later they didn't look better, more darker green and slightly shiny leaves, with a few tips turning down/up. I think it's nitrogen toxicity and I made a mistake buying mainstream potting mix with slow release fertiliser in it.
On day 20 I did a flush with a lot of runoff hoping that helps, but I don't know if it's possible to "flush" out the slow release fertiliser?
Do you think this looks like a nitrogen toxicity issue? Is it likely because I made a mistake using mainstream potting mix with slow release fertiliser in it? If so, will a flush or multiple flushes help, or should I transplant to better quality, organic soil? Thanks in advance!
Yeah looks like some nitrogen toxicity.. and if it was me personally, I would probably transplant into a higher quality organic soil or starter seed soil and feed nutrients manually.
If it’s something like miracle-gro, it’s gonna continue causing issues I’d think - especially growing an autoflower. I made the mistake of using miracle gro years back and it burned a photoperiod plant of mine, so imagine it will do worse to an autoflower which commonly requires less nutrients.
I’m really not sure that a flush will help.. that’s why I personally would be leaning towards a transplant. You may shock it a bit with the transplant. But otherwise if you have to flush more than a few times, you’re definitely stunting her and time is of the essence with autos.
Good luck!
Week 4 was a bit of a disaster.
I transplanted all 3 plants into organic super soil on Day 22 because the slow release fertliser in the store-bought potting mix was burning the leaves. But I screwed up and damaged the roots quite badly in the process.
It took 4 days for the plants to look viable again with new growth, so on day 26 I started LST. Lights are now at 16" and 100%. No nutrients this week, just PH'd water.
Plants are finally coming back strong, so fingers crossed week 5 is better!
Week 5 went really well, it's amazing how fast they can grow, there's lots of bud sites now with pistils developing.
Plenty of LST and some light defoliation, re-introduced watering with nutrients (BioBizz Grow and BioBizz Bloom) and they seem to be back on track after things going bad in week 4.
Week 6 was okay — more LST and defoliation to help with air flow, the bud sites and pistols continued to develop.
Noticed 2 or 3 gnats flying around on Day 38, so sprayed with PureCrop1 Organic pest formula and put up a few yellow sticky squares. Looks like it did the job as there's no sign of anything a few days later. However, the foliar spray left the smaller leaves curly and little gnarly, hopefully they'll straighten out again.
Watering with 0.5ml/L of BioBizz Grow and 1.5ml/L of Biobizz Bloom.
flatwhitenosugar
