V
vitaminG
- 22
- 3
Hey folks,
New member here and getting back into growing after almost 10 years.
Doing an outdoor grow this year from some a few clones I picked up - 2 Marionberry Kush (MBK1 and MBK2), and 1 Chernobyl clone.
Started to see some lower leaf yellowing on both Marionberries on 7/6/17 which has steadily gotten worse. Now I'm seeing yellowing in the Chernobyl too.
We have had 2 very hot weeks here in the PNW over the last couple of months. 90-100 F a few days.
Since beginning of June, temps have been mostly in the 80s during the daytime.
Been watering with city water/ gallons left out and chlorine hopefully evaporated off.
Just wondering what some more advanced growers might think. Current pics added at the end.
Here's the grow journal if you are interested the details.
_______________________________________________________
5/26/17
Starting soil - cheap potting soil with lots of bark in it, mixed with about half cup of 5-10-10 Lilly Miller granules mixed in.
---
6/28/17
Transplanted to bigger pots 3 - 5 gallons.
---
7/6/17
Started noticing some lower fan leaves turning slightly lime green.
Top foliage still seemingly growing nicely.
These same leaves had the occasional brown spot.
I had given them some half-strength Miracle Grow nitrogen maybe a week to 3 days before. NPK of 24 8 16
The plant that seemed most effected was MBK1, the big Marionberry Kush. This was also the plant that received the highest dose.
I thought that maybe the plants weren't getting ENOUGH nitrogen.
Within a few days after this date, as an experiment, I misted the foliage with a fairly moderate nitrogen water mixture. I did this in the morning perhaps on 7/8/17.
This didn't seem to help the next day, but I tried it one more time perhaps on the 9th.
This is when I looked at the plant closer and decided it was more likely a nutrient excess or pH problem?
Rinsed the leaves.
---
7/9/17
Lower leaves have continued yellowing steadily.
Flushed all plants with tapwater from the hose till the water ran mostly clear out of the pots.
Attempted pH readings but the meter I bought is not reliable. Number reads "7" after flush but I don't really trust it.
---
7/11/17
Lower leaves have seemingly continued to yellow.
Went and bought fish fertilizer.
1 teaspoon diluted in gallon (one-third-strength), distributed 'proportionally' to all plants based on pot size.
Perhaps the plants are getting ready to flower and they don't have enough P and K? Fungus? Disease?
---
7/13/17
More yellowing on MBK2. MBK2 is in the blue 5 gallon bucket and is leggier than MBK1. It's only the older, bigger leaves that seem to be yellowing.
MBK1 seems to have stabilized some but it's hard to tell due to the differences in light in the pictures. Older leaves are still lime green and some have brown spots.
Starting to think it's most likely a pH lockout, or Mag/Calcium deficiency with possibly potassium related deficiency since there is no magnesium in any of the fertilizers that I have. The chart below indicates that Mg and Phosphorous lock out at about 7. Maybe I have alkaline water?
---
7/15/17
Foliar fed all plants with a very light fish fert dilution (1/4 teaspoon diluted in gallon).
Plants today appear the same today as yesterday for the most part. There might be some more yellowing going on with MBK2.
If the plants are wanting to flower, it might make sense that they are craving some flower fertilizer, maybe that's why we're getting yellow leaves on the Indicas and not on the Sativa dominant Chernobyl. I thought it also might be possible that the MBK2's pot is too hot during the day.
Went ahead and wrapped all the pots in burlap and fastened with clothespins.
But also, why would MBK2 be yellowing leaves like crazy but MBK1 is seemingly stabilized. Things that have been different about MBK2:
7/17/17
All plants look worse, needing water.
MBK1 is yellowing again.
Even Chernobyl has started to visibly yellow now.
Could it be that the foliar spray made them yellow even more?
Maybe the extra leaf nitrogen made the plant want to spurt in growth more, taking away more phosphorus/potassium/magnesium from the leaves.
Calcium problem?
No sign of flowers coming on.
Fertilizing now with a mixture to see if I can fix the problem.
Hopefully it isn't a pH problem. Will test the pH of soil and my water tonight.
1.5 teaspoons 5-1-1. 1.5 teaspoons 0-10-10 (both fish) / gallon
1/2 teaspoon epsom salts / gallon
Yellow on MBK2:
MBK2 growing tip:
MBK1 doing better than MBK2:
Chernobyl starting to yellow at base:
New member here and getting back into growing after almost 10 years.
Doing an outdoor grow this year from some a few clones I picked up - 2 Marionberry Kush (MBK1 and MBK2), and 1 Chernobyl clone.
Started to see some lower leaf yellowing on both Marionberries on 7/6/17 which has steadily gotten worse. Now I'm seeing yellowing in the Chernobyl too.
We have had 2 very hot weeks here in the PNW over the last couple of months. 90-100 F a few days.
Since beginning of June, temps have been mostly in the 80s during the daytime.
Been watering with city water/ gallons left out and chlorine hopefully evaporated off.
Just wondering what some more advanced growers might think. Current pics added at the end.
Here's the grow journal if you are interested the details.
_______________________________________________________
5/26/17
Starting soil - cheap potting soil with lots of bark in it, mixed with about half cup of 5-10-10 Lilly Miller granules mixed in.
---
6/28/17
Transplanted to bigger pots 3 - 5 gallons.
---
7/6/17
Started noticing some lower fan leaves turning slightly lime green.
Top foliage still seemingly growing nicely.
These same leaves had the occasional brown spot.
I had given them some half-strength Miracle Grow nitrogen maybe a week to 3 days before. NPK of 24 8 16
The plant that seemed most effected was MBK1, the big Marionberry Kush. This was also the plant that received the highest dose.
I thought that maybe the plants weren't getting ENOUGH nitrogen.
Within a few days after this date, as an experiment, I misted the foliage with a fairly moderate nitrogen water mixture. I did this in the morning perhaps on 7/8/17.
This didn't seem to help the next day, but I tried it one more time perhaps on the 9th.
This is when I looked at the plant closer and decided it was more likely a nutrient excess or pH problem?
Rinsed the leaves.
---
7/9/17
Lower leaves have continued yellowing steadily.
Flushed all plants with tapwater from the hose till the water ran mostly clear out of the pots.
Attempted pH readings but the meter I bought is not reliable. Number reads "7" after flush but I don't really trust it.
---
7/11/17
Lower leaves have seemingly continued to yellow.
Went and bought fish fertilizer.
1 teaspoon diluted in gallon (one-third-strength), distributed 'proportionally' to all plants based on pot size.
Perhaps the plants are getting ready to flower and they don't have enough P and K? Fungus? Disease?
---
7/13/17
More yellowing on MBK2. MBK2 is in the blue 5 gallon bucket and is leggier than MBK1. It's only the older, bigger leaves that seem to be yellowing.
MBK1 seems to have stabilized some but it's hard to tell due to the differences in light in the pictures. Older leaves are still lime green and some have brown spots.
Starting to think it's most likely a pH lockout, or Mag/Calcium deficiency with possibly potassium related deficiency since there is no magnesium in any of the fertilizers that I have. The chart below indicates that Mg and Phosphorous lock out at about 7. Maybe I have alkaline water?
---
7/15/17
Foliar fed all plants with a very light fish fert dilution (1/4 teaspoon diluted in gallon).
Plants today appear the same today as yesterday for the most part. There might be some more yellowing going on with MBK2.
If the plants are wanting to flower, it might make sense that they are craving some flower fertilizer, maybe that's why we're getting yellow leaves on the Indicas and not on the Sativa dominant Chernobyl. I thought it also might be possible that the MBK2's pot is too hot during the day.
Went ahead and wrapped all the pots in burlap and fastened with clothespins.
But also, why would MBK2 be yellowing leaves like crazy but MBK1 is seemingly stabilized. Things that have been different about MBK2:
- There was no cloth over the bucket to block the heat.
- Originally the plant was in a less than desirable pot
- Roots seemed weak when I initially transplanted on 6/28 (Had to prop it up with a marshmallow stick)
- Bucket is much deeper (could be that it didn't flush all the way or that it's stayed too moist)
- Holes might not be sufficiently large for drainage.
7/17/17
All plants look worse, needing water.
MBK1 is yellowing again.
Even Chernobyl has started to visibly yellow now.
Could it be that the foliar spray made them yellow even more?
Maybe the extra leaf nitrogen made the plant want to spurt in growth more, taking away more phosphorus/potassium/magnesium from the leaves.
Calcium problem?
No sign of flowers coming on.
Fertilizing now with a mixture to see if I can fix the problem.
Hopefully it isn't a pH problem. Will test the pH of soil and my water tonight.
1.5 teaspoons 5-1-1. 1.5 teaspoons 0-10-10 (both fish) / gallon
1/2 teaspoon epsom salts / gallon
Yellow on MBK2:
MBK2 growing tip:
MBK1 doing better than MBK2:
Chernobyl starting to yellow at base:
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