Help sick plant
- Thread starter Dave017
- Start date
robnarley1111
Active Member
Looks like a mixture of nutrients actually. I would surmise it's due to underfeeding (i.e. skipped watering or under-nuting), as you suggested. I see a calcium deficiency, as well as potassium, nitrogen...etc. What are you feeding it at the moment? Are you using soil?
Give it a drink of a balanced fertilizer and see if the yellowing improves; the necrosis on the leaves (spotting) won't be reversible though.
Give it a drink of a balanced fertilizer and see if the yellowing improves; the necrosis on the leaves (spotting) won't be reversible though.
Dave017
Well-Known Member
I am feeding general organics go box but last run I overnuted looks like I was afraid to use too much and I used too little this time also I may have not calculated how much nutes for autos due to there fast growth other 2 plants are fine but the red poison looks to be a more heavy feeder and yes I'm in soil
robnarley1111
Active Member
I see. Well I'm a beginning grower myself, just started in June. Still battling with the issue of knowing exactly how much to use. This is how I do it (I use soil less medium with NO nutrient amendments within it):
I start all plants off with about 1/8 teaspoon/gallon (seedlings), or 50% less than what the manufacturer recommends. Then, I continue using that amount as long as the leaves stay a healthy green; until the plant is showing a nitrogen deficiency. The leaves will start getting a lighter green than they should be for each specific plant. Since the plant will show that first, you can assume that the plant needs more nutrients altogether, before other deficiencies show.
So, then I move up to 1/4 teaspoon/gallon (seedlings/vegging plants). I then feed that much until the plant starts to show signs of nitrogen deficiency, indicating the amount I'm giving isn't enough to sustain the plant's growth. Then I move up to 3/4 teaspoons/gallon once 1/4 tea/gallon is not enough to keep the leaves a healthy green. Since I use soil less, I feed EVERY watering, so with soil you wouldn't necessarily need to do that. But definitely read the plant and up the nutes when the leaves start going light green. Then feed with plain water or diluted nutrients while the plant shows it's healthy and green (from top to bottom)--depending on how many nutrients are left in your soil. Unless you want to "push" the plant with certain bloom boosters, etc.
IMO, heavy feeders in flowering will suck up nitrogen from the bottom leaves first---and quickly at that. Like my Northern Lights plant. Right now, in week#4 of flowering, I still find my plants (OG Kush too) needing lots of nitrogen, so I give them 50% bloom and 50% veg (Foliage Pro). Not sure if I'll change the ratio as long as I see the leaves yellow up within a couple days of not having enough nitrogen in their pots!
Hope that helps!
I start all plants off with about 1/8 teaspoon/gallon (seedlings), or 50% less than what the manufacturer recommends. Then, I continue using that amount as long as the leaves stay a healthy green; until the plant is showing a nitrogen deficiency. The leaves will start getting a lighter green than they should be for each specific plant. Since the plant will show that first, you can assume that the plant needs more nutrients altogether, before other deficiencies show.
So, then I move up to 1/4 teaspoon/gallon (seedlings/vegging plants). I then feed that much until the plant starts to show signs of nitrogen deficiency, indicating the amount I'm giving isn't enough to sustain the plant's growth. Then I move up to 3/4 teaspoons/gallon once 1/4 tea/gallon is not enough to keep the leaves a healthy green. Since I use soil less, I feed EVERY watering, so with soil you wouldn't necessarily need to do that. But definitely read the plant and up the nutes when the leaves start going light green. Then feed with plain water or diluted nutrients while the plant shows it's healthy and green (from top to bottom)--depending on how many nutrients are left in your soil. Unless you want to "push" the plant with certain bloom boosters, etc.
IMO, heavy feeders in flowering will suck up nitrogen from the bottom leaves first---and quickly at that. Like my Northern Lights plant. Right now, in week#4 of flowering, I still find my plants (OG Kush too) needing lots of nitrogen, so I give them 50% bloom and 50% veg (Foliage Pro). Not sure if I'll change the ratio as long as I see the leaves yellow up within a couple days of not having enough nitrogen in their pots!
Hope that helps!