Flowering plants yellowing from top down, yellow buds

[lipsmcgee]

How long has this problem been going on? 4 weeks
What STRAIN are you growing? hashberry, pure gold, 2 bagseed
What was the establishing technique? (seed or clone?) seed What is the age of your plants? 9 weeks
How long have they been in the soil mixture they are in now? 5 1/2 weeks
How Tall are the plants? 2.5 ft
What PHASE (seedling, vegetative or flower) are the plants in? flowering
What Technique are you using? (SOG, SCROG etc) lst
What size pots are you using? (Include how many subjects to pot) 5 gallon
What substrate/medium are you using? What brand of soil mixture are you using?(percentage of perlite, vermiculite...etc?)ffof What Nutrient's are you using? pure vida bloom, just watered with molasses only 2 days ago
How much of each nutrient are you using with how much water? 1/2 -3/4 tablespoon only fed 2 times *Knowing the brand is very helpful*
How often are you feeding? only 2 flowering feedings have been done
If flowering, when did you switch over to using Bloom nutrients?after 2 weeks of 12/12
What order are you mixing your nutrients? (example: veg nutes 1st, bloom 2nd ect)
What is the TDS/EC/PPM of your nutrients used? ec=.7-.8
What is the pH of the "RUN-OFF"?6.3
What method of pH test was administered? Using Strips? pH pen? ph pen
How often are you watering? 3-4 days
When was your last feeding and how often are you feeding? 2 days ago just 1 tablespoon molasses
What size bulb are you using? 400HPS
What is the distance to the canopy? 14 in
What is your RH Factor? (Relative Humidity) 49-51%
What is the canopy temperature? 78 F
What is the Day/Night Temp? (Include fluctuation range) 78f-65 F
What is the current Air Flow? (cfm etc.) poratable ac in room with fan directing air into growspace
Tell us about your ventilation, intake exhaust and when its running and not running ? door to room remains open allowing full changes of air
Is the fan blowing directly at plants? no
Is the grow substrate constantly wet or moist?no
Is your water HARD or SOFT?hard
What water are you using? Reverse Osmosis (RO)? Tap? Bottled? Well water? Distilled? Mineral Water? aquasana countertop filtration system
Are you using water from a water softener? no
Has plant been recently pruned, cloned or pinched? nope
Have any pest chemicals been used? If so what and when? nope
Are plant's infected with pest's? nope

 

[lipsmcgee]

When I started to flower, the plants were in great shape, as the bud sites began to develop they all looked lighter than the rest of the plant(thought it was just the lighter new growth) Well they never ended up greening up to a "regular" bud color, nice and green, instead just getting a tad yellower as time progressed. It's been almost five weeks flowering and the plants as a whole look pretty green, some yellowing of fan leaves but that's not a problem overall. I'm more concerned about the yellow leaves that are also starting to affect the buds, turning them slowly yellow. Some of the leaves that were just paling are now very yellow(all at the top of the plant) and getting brown spots. They're probably at least 3 weeks to harvest and don't want them to stop budding or die in the meantime. Sorry no pics don't have a camera. Any help is great! Thanks.

 

[10k]

It sounds like they could use some feeding.
If I'm reading this correctly, you've only fed them a couple times so far at .7 or .8 ec and they're about three weeks from harvest.
They really should have been eating a much stronger mix by now, somewhere in the neighborhood of 1.6 to 2.1 ime,
(depending on plant size vs light intensity of course).

 

[headimonster]

It sounds like they could use some feeding.
If I'm reading this correctly, you've only fed them a couple times so far at .7 or .8 ec and they're about three weeks from harvest.
They really should have been eating a much stronger mix by now, somewhere in the neighborhood of 1.6 to 2.1 ime,
(depending on plant size vs light intensity of course).

yeah i d have to second that from 10k, also ur secondary nutes, did u have any Mg, or Ca?

 

[mexilandrace]

careful if you only have a couple weeks left, going overboard now could end you up with really harsh smoke.

and hashberry doesn't need too much so I would use less on it than the others as well.

honestly, hashberry will bud out yellow buds if you can get the nutes perfect you still get a decent yeild and the smoke is really freaking smooth. Can't speak on the others, but I can get about half the stuff I have grown to bud out yellow, always really smooth, but if you are selling forget about yellow buds, people like to talk shit about them.

 

[headimonster]

mexilandrace - u can always get good "yellow" buds from flushin at the end too....

and also u woont end up with harsh smoke by flushin either--- and with three weeks left all organic u can easily flush everything out in 10days.....EASILY....

 

[lipsmcgee]

Thanks! i kind of thought I might need to be feeding more but have burned plants in the past so i went really light this time. What strength feedings should I try for the remaining time? ec 1.0? more or less?

 

[lipsmcgee]

Headimonster, no I haven't added any cal/mag except for the molasses which I think had minute amounts. I just bought some epsom salts today, but haven't used them yet. Maybe next feeding?

 

[lipsmcgee]

Mexilandrace, yeah the hashberry looks the best out of them all, not too much yellowing compared to the others, probably cause it does better with less nutes?