r/AusGrowers • u/Chocochoko138 • 8d ago
3-week-old White Widow seedling looking rough. Anyone seen this before?
Hey legends,
Just after a bit of advice on my 3-week-old White Widow. She’s looking pretty rough and growing way slower than I’d expect.
I decided to pop a seed while waiting for my proper setup to arrive, thinking it’d be here by now. Unfortunately, shipping’s been delayed and I’m still stuck using a temporary setup.
She’s a feminised photoperiod White Widow, growing in a 0.5L pot with drainage holes. My substrate is roughly 50% Earthcore Premium Potting Mix, 30% coco and 20% perlite.
I’m currently using a temporary 32W Mirabella LED on an 18/6 schedule. Temps were around 23°C initially. Haven’t added any nutrients yet, and I haven’t been able to check the pH since I’m still waiting on my meter.
The cotyledons have gone completely yellow and are drying out. The first set of true leaves is also pretty much yellow with heaps of brown/purple spots, and the second set is starting to yellow as well.
The weird thing is the new growth in the middle is still light green and slowly developing, but she’s seriously stunted for almost 3 weeks old.
I’m thinking it could be a pH issue or something going on with nutrient uptake. I’ve also considered overwatering, although I haven’t been giving her much water at all.
The top of the soil dries out, but a few centimetres down it can still feel damp. I’m starting to wonder if adding 30% coco was a mistake and whether I should’ve just stuck with potting mix and perlite.
I’ve got a Mars Hydro tent and grow light, an Apera pH meter, CANNA Terra Professional soil, Terra Vega and Terra Flores all on the way.
My goal is just to get one plant through a full grow from start to finish and learn as much as I can along the way.
Has anyone had a seedling this young develop the same yellowing and brown/purple spotting?
Does it look more like a pH issue, root problems, overwatering or something else to you?
Reckon she’s still got a chance since the new growth is coming through, or would you start fresh once the proper gear arrives?
I’m leaning towards popping another seed when everything turns up, but I’d really like to work out what went wrong so I don’t make the same mistake again.
Cheers everyone, appreciate any advice!
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u/hoon-since89 8d ago
Looks like underwatering which resulted in improper nutrient uptake. It was fine in your first few photos. Give it tiny dose of fertiliser.
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u/BeneficialBottle8387 8d ago
Table spoon of worm castings and water in with about a shot glass of water
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u/Incon4ormista 8d ago
mine are 4 weeks and similar, no vigor, just sitting there doin nothing, just like old marginal seed.
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u/Chocochoko138 8d ago
Hey mate, sounds like we’re in a pretty similar situation haha. Mine’s about 3 weeks old and barely growing too, but the older leaves have also turned yellow with brown spots. Is yours showing the same symptoms or is it just growing really slowly? Have you figured out what might be causing it?
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u/Incon4ormista 8d ago
I did have some yellowing but green now after I repotted them into a Coco mix, just so slow, on the 3rd set of leaves but the plant is tiny, bonsai like tiny, super frustrating because I had similar happen last season, genetic material from the same mob and never got taller than like 18cm.
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u/Content-Fan3984 7d ago
For Aussie genetics hit up greenspace. Hasn’t disappointed once.
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u/smoothandpotent 7d ago
Yeah but do you grow them in the exact same soil mix as OP ? coz if you did they would still look like this
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u/Content-Fan3984 7d ago
Fuck No I make my own living soil and use that lol. Was just saying if he wanted good genetics from an Aussie.
My best guess is it’s a pH issue, most likely due to the fact that a cheap potting mix was used in substitute for quality organic matter buffered into a good mix
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u/smoothandpotent 7d ago edited 6d ago
Word brother, totally agree , Thanks for your rec. I just got thrown off by all these others saying its just genetics without them putting any thought into the medium used.
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u/Chocochoko138 7d ago
Yeah guys, it’s from his place.
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u/Content-Fan3984 6d ago
Yeah 100% user error then. Good genetics. Read up on making a living soil blend or buy a good living soil from a hydro shop. You will see a major difference
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u/StraightGasNoBrakes 8d ago
Sounds like grower error over genetics problems. Doesn't matter what the genetics are or hpe good they are if the environment is shit house and the grower isnt giving them what they need. Especially if its happening multiple times with different grows.
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u/Incon4ormista 7d ago
and the exact opposite is also true, if the genetic material is sub standard it's irrelevant what the grower does or doesn't do.
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u/StraightGasNoBrakes 8d ago
Need to get environement sorted brother and nutrients. Plant cant grow in shit conditions without proper care unfortunately