Seedliing is stunted in growth? And yellowing

Deedoubleu · Apr 30, 2020

This seedling is about 9 days old. It started growing quickly, by day 2 it has the true leaves poking out but somewhere along the way it stopped growing and started yellowing. What can be the cause? I do see little sprouts growing in the middle of the first set of true leaves but I dont think the true leaves have grown enough to start growing a second set already?

I'm a noob and I only intend on growing this one plant, more for curiosity than anything else so please help me save it/ fix what's wrong.

Deedoubleu · Apr 30, 2020

More pictures for reference. I have this plant under cfl 80 watts (2 40 watt bulbs) overnight and I live where it's always sunny so I put it outside from 7 am to 5 pm in (mostly) direct sunlight. Water probably once a day, drainage holes on bottom of cup. I keep the light about 3-4 inches away from the light.

Rango96 · May 2, 2020

How much water you give it bro and is it straight water or is it fert

Truthsurge · May 2, 2020

Cant see too well but it looks like you have a lot of wood chips in the cup ?, could be stopping root formation and keeping the media really wet.

JoeBlow5823 · May 2, 2020

Deedoubleu said:
More pictures for reference. I have this plant under cfl 80 watts (2 40 watt bulbs) overnight and I live where it's always sunny so I put it outside from 7 am to 5 pm in (mostly) direct sunlight. Water probably once a day, drainage holes on bottom of cup. I keep the light about 3-4 inches away from the light.

What kind of dirt is it in? Water PH?

dannyboy602 · May 2, 2020

The cotyledons are yellowing. I think I see a little yellowing on the tip of a newer leaf. Now here's the thing...I know you'll be tempted to add fertilizer but don't. If anything you can give it a weak hit of mag. Epsom salts if ya got em. I wouldn't do anything else. My instincts tell me its your soil that's making them yellow...but that's just an educated guess. Let's see how they do in a few days.

Deedoubleu · May 2, 2020

Updated picture. The medium is a compost potting mix...

I recently changed the soil from ecoscraps potting mix to black gold until I can get something better ordered (hence the wetness of the medium atm)

Deedoubleu · May 2, 2020

dannyboy602 said:
The cotyledons are yellowing. I think I see a little yellowing on the tip of a newer leaf. Now here's the thing...I know you'll be tempted to add fertilizer but don't. If anything you can give it a weak hit of mag. Epsom salts if ya got em. I wouldn't do anything else. My instincts tell me its your soil that's making them yellow...but that's just an educated guess. Let's see how they do in a few days.

Do I dissolve Epsom salt into water and water it? Is there a specific ratio?

Deedoubleu · May 2, 2020

JoeBlow5823 said:
What kind of dirt is it in? Water PH?

I dont know the PH. I have been using distilled water though. I ordered a ph soil reader, but it might take a while.

Deedoubleu · May 2, 2020

Truthsurge said:
Cant see too well but it looks like you have a lot of wood chips in the cup ?, could be stopping root formation and keeping the media really wet.

It's a compost mix, but I recently switched to black gold potting soil.

Deedoubleu · May 2, 2020

Could lighting be an issue? The sun is blazing hot during the day and I keep it outdoors from sun up to sun down, then have 2 40 watt cfls 4 inches away overnight. Too much heat?

dannyboy602 · May 2, 2020

Deedoubleu said:
Do I dissolve Epsom salt into water and water it? Is there a specific ratio?

ya know what...add 2 tbsp Epsom Salts to a gallon of water then foliar spray once a week for a month...then reassess. Spraying is the fastest route into the plant.

dannyboy602 · May 2, 2020

Deedoubleu said:
Could lighting be an issue? The sun is blazing hot during the day and I keep it outdoors from sun up to sun down, then have 2 40 watt cfls 4 inches away overnight. Too much heat?

tooooo much light. seedlings should be hardened off in part shade for a few days FIRST

Deedoubleu · May 2, 2020

dannyboy602 said:
tooooo much light. seedlings should be hardened off in part shade for a few days FIRST

Could that cause the slow growth? Yellowing of leaves?

dannyboy602 · May 2, 2020

Yes anything that fucks with photosynthesis can cause slow growth

JoeBlow5823 · May 2, 2020

dannyboy602 said:
tooooo much light. seedlings should be hardened off in part shade for a few days FIRST

Ive always sprouted under 24 hour light. Typically with a 250w led

dannyboy602 · May 2, 2020

JoeBlow5823 said:
Ive always sprouted under 24 hour light. Typically with a 250w led

Yeah That's a nice weak stream of photons, hehehe...apples and oranges...he's growing in full sun, 100,000 lumens. you're growing your seedlings in about 14,000 lumens.

Deedoubleu · May 3, 2020

Pictures from today.... its growing...but not much and the yellowing is getting worse.

noidea · May 3, 2020

Deedoubleu said:
More pictures for reference. I have this plant under cfl 80 watts (2 40 watt bulbs) overnight and I live where it's always sunny so I put it outside from 7 am to 5 pm in (mostly) direct sunlight. Water probably once a day, drainage holes on bottom of cup. I keep the light about 3-4 inches away from the light.

They look great for a day’s time mine aint even half of that

Deedoubleu · May 4, 2020

noidea said:
They look great for a day’s time mine aint even half of that

They've been growing for 2 weeks now almost. It's still so small!

Seedliing is stunted in growth? And yellowing

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