Heat stress or potassium? Edge burn and slow growth.

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SupremeBudDrongo

Active Member
1st grow and its already getting a little complicated lol. Im getting some strange edge burn along the serrated edges on two of the top leaves. purple stems and slight blotchy pigmentation is also going on in the lower older 3 finger leaves (although very small amount and can be somewhat seen in DSF3224.jpeg). New node/leaf growth at the very top is slow almost completely stagnated for 3ish days and has a dark purply shriveled black tinge to the tips. I calmag'd water flushed PH 6.3 yesterday night and noticed a bit of growth this morning which is encouraging. What could be going on here guys? Is it Potassium? PH?

Medium - Coco perlite 70-30
Time since germination - 36 days
PH - ~6.3
 

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Kaotic

Kaotic

Well-Known Member
SupremeBudDrongo said:
1st grow and its already getting a little complicated lol. Im getting some strange edge burn along the serrated edges on two of the top leaves. purple stems and slight blotchy pigmentation is also going on in the lower older 3 finger leaves (although very small amount and can be somewhat seen in DSF3224.jpeg). New node/leaf growth at the very top is slow almost completely stagnated for 3ish days and has a dark purply shriveled black tinge to the tips. I calmag'd water flushed PH 6.3 yesterday night and noticed a bit of growth this morning which is encouraging. What could be going on here guys? Is it Potassium? PH?

Medium - Coco perlite 70-30
Time since germination - 36 days
PH - ~6.3
Click to expand...
SupremeBudDrongo said:
1st grow and its already getting a little complicated lol. Im getting some strange edge burn along the serrated edges on two of the top leaves. purple stems and slight blotchy pigmentation is also going on in the lower older 3 finger leaves (although very small amount and can be somewhat seen in DSF3224.jpeg). New node/leaf growth at the very top is slow almost completely stagnated for 3ish days and has a dark purply shriveled black tinge to the tips. I calmag'd water flushed PH 6.3 yesterday night and noticed a bit of growth this morning which is encouraging. What could be going on here guys? Is it Potassium? PH?

Medium - Coco perlite 70-30
Time since germination - 36 days
PH - ~6.3
Click to expand...
I’m thinking the soil has a little too much of I’m guessing Phosphorus which can be a little to much for plants in Veg. But other than that bro your looks good, twisting new growth is common happens to the best of us, it can also be a mutant plant genetic, but it doesn’t matter your plant looks good, I even have some twisting on my new growth as well right now.
 
S

SupremeBudDrongo

Active Member
Kaotic said:
I’m thinking the soil has a little too much of I’m guessing Phosphorus which can be a little to much for plants in Veg. But other than that bro your looks good, twisting new growth is common happens to the best of us, it can also be a mutant plant genetic, but it doesn’t matter your plant looks good, I even have some twisting on my new growth as well right now.
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Cheers my friend, you are right I may be over worrying a bit but then again ive never grown anything in my life so please forgive my paranoia lol. Ill check into phosphorous. I dont think the fert im using has too much P in it but ill double check just in case. Thanks again :)
 
Kaotic

Kaotic

Well-Known Member
SupremeBudDrongo said:
Cheers my friend, you are right I may be over worrying a bit but then again ive never grown anything in my life so please forgive my paranoia lol. Ill check into phosphorous. I dont think the fert im using has too much P in it but ill double check just in case. Thanks again :)
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No problem bro here to help!
 
Kaotic

Kaotic

Well-Known Member
SupremeBudDrongo said:
1st grow and its already getting a little complicated lol. Im getting some strange edge burn along the serrated edges on two of the top leaves. purple stems and slight blotchy pigmentation is also going on in the lower older 3 finger leaves (although very small amount and can be somewhat seen in DSF3224.jpeg). New node/leaf growth at the very top is slow almost completely stagnated for 3ish days and has a dark purply shriveled black tinge to the tips. I calmag'd water flushed PH 6.3 yesterday night and noticed a bit of growth this morning which is encouraging. What could be going on here guys? Is it Potassium? PH?

Medium - Coco perlite 70-30
Time since germination - 36 days
PH - ~6.3
Click to expand...
I think I got it, before you watered with cal mag and water , what did you do, water with water and calmag as well or did you fert feed, how often do you fert feed?
 
Kaotic

Kaotic

Well-Known Member
SupremeBudDrongo said:
1st grow and its already getting a little complicated lol. Im getting some strange edge burn along the serrated edges on two of the top leaves. purple stems and slight blotchy pigmentation is also going on in the lower older 3 finger leaves (although very small amount and can be somewhat seen in DSF3224.jpeg). New node/leaf growth at the very top is slow almost completely stagnated for 3ish days and has a dark purply shriveled black tinge to the tips. I calmag'd water flushed PH 6.3 yesterday night and noticed a bit of growth this morning which is encouraging. What could be going on here guys? Is it Potassium? PH?

Medium - Coco perlite 70-30
Time since germination - 36 days
PH - ~6.3
Click to expand...
Also is your soil amended?
 
S

SupremeBudDrongo

Active Member
Kaotic said:
Also is your soil amended?
Click to expand...
I calmagged the coco but thats about it really. Once i transplanted onto this pot im using now, added a handful of general potting mix to cover the main stem/root area. Other than that no other ammendments. Only nutes/water/ocassional calmag boosting.
 
S

SupremeBudDrongo

Active Member
Kaotic said:
I think I got it, before you watered with cal mag and water , what did you do, water with water and calmag as well or did you fert feed, how often do you fert feed?
Click to expand...
from about week 3-week 4 i fert feed every watering. (this may have lead to some nute burn so i backed off with the over feeding). But this new leaf edge burn only appeared after i flushed the plant with calmagged water. But just as the burn appeared the plant also jumped back into growth mode and the tips are growing again. What do you reckon?
 
Kaotic

Kaotic

Well-Known Member
SupremeBudDrongo said:
I calmagged the coco but thats about it really. Once i transplanted onto this pot im using now, added a handful of general potting mix to cover the main stem/root area. Other than that no other ammendments. Only nutes/water/ocassional calmag boosting.
Click to expand...
Okay, I would say add a little cal mag every few feedings if not every other, other than that your plants look great honestly,good job! That’s all.
 
Kaotic

Kaotic

Well-Known Member
SupremeBudDrongo said:
from about week 3-week 4 i fert feed every watering. (this may have lead to some nute burn so i backed off with the over feeding). But this new leaf edge burn only appeared after i flushed the plant with calmagged water. But just as the burn appeared the plant also jumped back into growth mode and the tips are growing again. What do you reckon?
Click to expand...
Ya the minor over fert did its damage to that leaf, the cal mag with water actually helped it.
 
Kaotic

Kaotic

Well-Known Member
Also plants in coco especially mature ones tend to drink up water in coco quick, coco has good drainage and oxygen it’s great, the coco coir fibres also retains water really good, but that water gets absorbed by the vibrant and vigorous roots of coco plants quick , once you see that plants stalk yet thick and start to really vegetate you’ll see what I mean haha, I’m not sure if you already knew you might have but sheesh do they drink.
 
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