Problem 2 weeks before harvest?

[bigtopsfinn]

I have this Greenhouse Seeds Fem. Trainwreck. It is 7 weeks into flowering, and probably about a week and a half to 2 weeks from harvest.

I was feeding it Canna Terra Flores N-P-K 2-2-4, and Plagron Green Sensation Top Activator 0-9-10, and water (alternating between each watering). For the last week and half however, I stopped using the water, and alternated between the two nutes.

A couple days ago I noticed the leaves around the top of the plant began to rust and turn purplish around the edges. I stopped feeding the nutes and have given her only water since. It has gotten progressively worse the last few days, but it has been slow.

E-indoor or outdoor: Indoor
E-soil, soilless, coco, aero, or hydroponic: Soil
E-specific medium: Only Soil
CSL-Soil type/brand: Indoor Flower Soil, N-P-K 6-12-24

SCL-Anything you have added to the soil, No. Last Re-Pot was 4 weeks ago, day 51 from a 10L to 23L bucket
SCLR-Soil or slab runoff pH, I don't know (no pH meter)
E-Water source, Tap
E-Source water pH Unknown
E-Age of plant 79 days, 49 days into flowering
E-Type of fertilizer Stopped feeding, Canna Terra Flores N-P-K 2-2-4, and Plagron Green Sensation Top Activator 0-9-10, now water only
E-Rate of application (if hydro, this is your PPM number, preferably after each component is added) Twice per day
E-Lighting source and distance from plant 400W HPS, 40cm from the tops
E-Air temperature (both day and night if you are running a dark period), 27-29C Day, 20-21C Night
E-Air % Relative humidity Meter says 11%, but I dont think it works. Anyways, its very dry here where I live
E-Lighting schedule 12/12
E-Type of ventilation your room has 15" room fan blowing directly on the plant (must do this to keep temps low)

I hope this helps some. I now wish that I had ordered the pH meter with the rest of the shit, but oh well. too late now. no hydro stores anywhere near here, and I would probably have to order anything special via online.

I got some pics. The leaves around the bottom are turning yellow, but I know this is normal. I have some pics of the tops and their leaves to show you what my concern is.

bigtopsfinn Reviewed by bigtopsfinn on 11-30-2008. Problem 2 weeks before harvest? I have this Greenhouse Seeds Fem. Trainwreck. It is 7 weeks into flowering, and probably about a week and a half to 2 weeks from harvest. I was feeding it Canna Terra Flores N-P-K 2-2-4, and Plagron Green Sensation Top Activator 0-9-10, and water (alternating between each watering). For the last week and half however, I stopped using the water, and alternated between the two nutes. A couple days ago I noticed the leaves around the top of the plant began to rust and turn purplish Rating: 5

[Rusty Trichome]

For the last week and half however, I stopped using the water, and alternated between the two nutes.

E-Type of fertilizer Stopped feeding, Canna Terra Flores N-P-K 2-2-4, and Plagron Green Sensation Top Activator 0-9-10, now water only

E-Rate of application (if hydro, this is your PPM number, preferably after each component is added) Twice per day

Looks like overfet, to me. But, which is it...? Did you stop the plain water, or did you stop the nutes?

Two waterings per day...? I live in the desert and at most, during the summer, I water daily. When was your last flush?

A ph pen and it's calibrating solution, are an invaluable tool worth the investment.

[bigtopsfinn]

Looks like overfet, to me. But, which is it...? Did you stop the plain water, or did you stop the nutes?

Two waterings per day...? I live in the desert and at most, during the summer, I water daily. When was your last flush?

A ph pen and it's calibrating solution, are an invaluable tool worth the investment.

Hey Rusty, thanks for the quick reply.

I first stopped water for two weeks, giving it only nutrient solutions until i noticed the change. But now I am only giving water. Over-ferting was my first guess, so thats why I did this.

As for the watering... I noticed my plants starting to wilt in the late afternoon and night. Therefore I started to water in the morning and afternoon, and she didn't complain at all.

No flush yet, should I do this now? I didn't want to screw it up more by flushing and not having the ph correcter, so I've been hoping (usually doesnt help much, I know) that the problem doesn't get too bad.

I think I could even take it down today if I had to, because it is quite potent already. However, flowering time is listed as 8-9 weeks, and its been only 7. Therefore i'd like to keep if for at least another week, or until I see some amber trichs.

ph pen and calibrating solution are the list for the next project. If i order one now it will probably get here in 2 weeks, so not much help. (had to keep things within a budget for the first go-around to keep the wife happy :thumbsup

[Rusty Trichome]

I first stopped water for two weeks, giving it only nutrient solutions until i noticed the change. But now I am only giving water. Over-ferting was my first guess, so thats why I did this.

As for the watering... I noticed my plants starting to wilt in the late afternoon and night. Therefore I started to water in the morning and afternoon, and she didn't complain at all.

How much water in what size pot? Perhaps not getting enough water to the lower root zone?
When I give nutes, I try not to let it run out of the bottom, but still get to the bottom. But on freshwater days, I make sure to get some run-off. (a cup or so, max) Kinda like a mini-flush. Also, salts build up and can swing your ph, inhibit uptake, kill roots...

No flush yet, should I do this now? I didn't want to screw it up more by flushing and not having the ph correcter, so I've been hoping (usually doesnt help much, I know) that the problem doesn't get too bad.

Best to use properly ph'd water, but have you brought her this far without adjusting? If so, not sure I'd worry about it. (she's pretty awesome looking as is) But, properly adjusted water and nute solutions can show greatly improved results, and knowing your ingoing and runoff ph is very useful in troubleshooting problems.

I think I could even take it down today if I had to, because it is quite potent already. However, flowering time is listed as 8-9 weeks, and its been only 7. Therefore i'd like to keep if for at least another week, or until I see some amber trichs.

I always flush a week before finish, then no more nutes, just water.
Patience is almost always worth the impatience. (How profound, eh?) I'd see if I could correct the problem. If she still declines, I'll bet she's smokable. :jointsmile:

(had to keep things within a budget for the first go-around to keep the wife happy :thumbsup

Likely a wise decision.

[bigtopsfinn]

Thanks again for the quick reply, Rusty.

About the container size, right now its 23 L. There is a problem that when I try to water the whole pot, the water will run to the sides, straight down the walls of the container, and out of the air holes on the side. I have a bowl shape in the soil where I pour the water, but I dont think I am getting the water to penetrate all of the soil

I think the problem is in the soil itself, and I couldn't find perlite around here. Also, the container itself pretty much sucks for a plant, but it's quite hard to find cannabis-growing materials around here, much less any advanced gardening supplies. Here, they expect you to throw a seed into some dirt and pray. I'll have to see in spring/summer time if there is a better selection of soils and pots, and stock up for the winter.

Lights are off for the night now, but first thing tomorrow morning I'll flush it out, see what happens.

[Dutch Pimp]

All things considered...(no perlite..:wtf:..) they look pretty good to me...:thumbsup:

[8182KSKUSH]

With all due respect, you sir are fucking crazy! Get the fuck outta here! Your plant looks great!
As for waiting for some amber trichs, yeah I know the feeling!
But seriously, just keep doing whatever you are doing, and what your instincts tell you to do, because you are doing it right obviously!

Fucking sweet shit man! :thumbsup:
Nice work!:jointsmile:

[bigtopsfinn]

With all due respect, you sir are fucking crazy! Get the fuck outta here! Your plant looks great!
As for waiting for some amber trichs, yeah I know the feeling!
But seriously, just keep doing whatever you are doing, and what your instincts tell you to do, because you are doing it right obviously!

Fucking sweet shit man! :thumbsup:
Nice work!:jointsmile:

HAHAHA Thanks dude! I guess I am just an over-concerned parent.

I wouldn't be in this great shape if it weren't for this site. However, going through other people's plant problems from time to time has made me more nervous about all the things that COULD go wrong. Most of the time, I just feel like this => :weedpoke:

[Rusty Trichome]

There is a problem that when I try to water the whole pot, the water will run to the sides, straight down the walls of the container, and out of the air holes on the side. I have a bowl shape in the soil where I pour the water, but I dont think I am getting the water to penetrate all of the soil.

Have you tried a surfactant? 1 tsp non anitbiotic dishsoap per gallon of water. Breaks the surface tention of the water, letting it absorb into the soil better. (just don't overdo it)

Duct tape across the holes might help, too.

[stinkyattic]

In regards to the water going right through the pot, stick some holes in the soil with a BBQ skewer and water SLOWLY.
In regards to the problem, the purple calyxes are normal. The scorch is from over fert- your pre-fertilized soil combined with the liquid feed is too much for the plants.
You are very close to harvest anyway so just water with plain pH'd water from here on out. If all the trichs are cloudy, you are entering your harvest window. The % amber is a matter of personal taste. Harvest at 100% cloudy for trippy buzzy, and up to about 25% amber for stuck-to-sofa style. Somewhere in between is the nice balance effect.
Nice job!