• Home
  • Forums
  • Medical Cannabis Cultivation
  • General Indoor Growing
  • What to feed after flush?

What to feed after flush?

  • Thread starter Thread starter AlmightyJumpman
  • Start date Start date Feb 19, 2025
  • Tagged users Tagged users None

What to feed after flush?

AlmightyJumpman Feb 19, 2025 16 Replies 2,368 Views
Page 1 of 1 · Replies 1–17 of 17
1
A

AlmightyJumpman

Posts
36
Reactions
20
Joined
Dec 17, 2024
Points
8
Feb 19, 2025
#1
I know somewhere around week 6 you are supposed to flush a cultivar that has a 8 week flowering period, what about one that says 8-10 weeks? Do I just wait until my trichomes start to get cloudy and then flush? And one more thing, after the flush, and i was told to only water with just ph water until harvest. Can I use floralicious plus with that watering? Meaning after I flush my soil completely with florakleen, can I follow up with just floralicious, after 24-48 hrs passed for the last few weeks? The bottle specifically says it’s a flavor and aroma booster. Thought it would be perfect to just top it off with that, I could be wrong. At that point, I won’t be using nitrogen anymore except the 2% in the floralicious plus, is 2% a lot?
 
Quote Reply

ArtfulCodger

Posts
2,080
Reactions
4,174
Joined
Apr 23, 2021
Points
263
Feb 19, 2025
#2
This is probably going to sound argumentative, and I don't mean it that way. If you're continuing to feed NPK nutes, why are you flushing? To my thinking, traditional flushing is something to do if you're over-fed, and want to get salt out of the pot. If you're not over-fed, you can stop NPK nutes two weeks before chop, and let the plants eat what's left in the pots and the fan leaves.
 
Reactions: Gmix, EternalSun, BB22 and 7 others
Quote Reply
O

OldOneEye

Posts
646
Reactions
1,135
Joined
Dec 21, 2024
Points
143
Feb 19, 2025
#3
Of you are using organic nutrients or synthetic?
Organics need no flushing.
Synthetic nutrients, 2 weeks is what i learned as a young padiwan, but nowadays growing in coco i try to get about 10 days of flushing. The first flush i usually flush with a light dosage of base nutrients (micros and macros), about quarter strength.
 
Reactions: Gmix and AlmightyJumpman
Quote Reply
A

AlmightyJumpman

Posts
36
Reactions
20
Joined
Dec 17, 2024
Points
8
Feb 19, 2025
#4
ArtfulCodger said:
This is probably going to sound argumentative, and I don't mean it that way. If you're continuing to feed NPK nutes, why are you flushing? To my thinking, traditional flushing is something to do if you're over-fed, and want to get salt out of the pot. If you're not over-fed, you can stop NPK nutes two weeks before chop, and let the plants eat what's left in the pots and the fan leaves.
Click to expand...
Ok that’s makes sense. What indicates there is too much salt in the first place? I only water once a week until runoff or when the leaves droop down after I let it dry out as much as possible. (Im using Tupur coco) Is the excess salts we are talking about the nutrients the plants didn’t use? Or regardless if it used it or not, salt still builds up regardless? I got about 2-3 more weeks until it’s time for this part, and I want to go in with a clear mind. From the videos I watched, you flush to lower your ppms to around 100-200 and that leads to a better smoke quality. If I didn’t flush and harvested with 1000 ppms in my soil, my buds would be harsh to the taste and I know the curing process has something to do with that as well. If I’m wrong, then what’s right? Ive watched podcasts with professor bugbee and he says it’s makes no difference. So I’ll just save my nutes after I flush
 
Quote Reply
A

AlmightyJumpman

Posts
36
Reactions
20
Joined
Dec 17, 2024
Points
8
Feb 19, 2025
#5
OldOneEye said:
Of you are using organic nutrients or synthetic?
Organics need no flushing.
Synthetic nutrients, 2 weeks is what i learned as a young padiwan, but nowadays growing in coco i try to get about 10 days of flushing. The first flush i usually flush with a light dosage of base nutrients (micros and macros), about quarter strength.
Click to expand...
I’m in coco , what do you look for that tells you it’s time to flush? I would love to flush a little later on after it got some more nutes and can possibly get bigger but these plants have stored nutrients. You flush once trichomes get cloudy or while they are still clear and immature?
 
Quote Reply

ArtfulCodger

Posts
2,080
Reactions
4,174
Joined
Apr 23, 2021
Points
263
Feb 19, 2025
#6
AlmightyJumpman said:
Ok that’s makes sense. What indicates there is too much salt in the first place? I only water once a week until runoff or when the leaves droop down after I let it dry out as much as possible. (Im using Tupur coco) Is the excess salts we are talking about the nutrients the plants didn’t use? Or regardless if it used it or not, salt still builds up regardless? I got about 2-3 more weeks until it’s time for this part, and I want to go in with a clear mind. From the videos I watched, you flush to lower your ppms to around 100-200 and that leads to a better smoke quality. If I didn’t flush and harvested with 1000 ppms in my soil, my buds would be harsh to the taste and I know the curing process has something to do with that as well. If I’m wrong, then what’s right? Ive watched podcasts with professor bugbee and he says it’s makes no difference. So I’ll just save my nutes after I flush
Click to expand...
I don't do a traditional flush. I taper down base nutes, starting two weeks before chop. It will depend on pot size, how much and what you're feeding, watering frequency, how big your plants are, and probably other factors. With your longer drybacks, I'd aim for 2 EC/1000 ppms in the pots two weeks before chop. I'd continue mag sulfur in the penultimate week, and then water only in the last week. But that's a guess. If someone has experience running your media in your style, listen to them.
 
Reactions: AlmightyJumpman
Quote Reply
O

OldOneEye

Posts
646
Reactions
1,135
Joined
Dec 21, 2024
Points
143
Feb 19, 2025
#7
AlmightyJumpman said:
I’m in coco , what do you look for that tells you it’s time to flush? I would love to flush a little later on after it got some more nutes and can possibly get bigger but these plants have stored nutrients. You flush once trichomes get cloudy or while they are still clear and immature?
Click to expand...
Depends on when you consider it ripe. I like about 50% amber, so I start my flush when I'm around 20% amber. This usually gives me enough time to flush salts.
 
Reactions: AlmightyJumpman
Quote Reply
A

AlmightyJumpman

Posts
36
Reactions
20
Joined
Dec 17, 2024
Points
8
Feb 19, 2025
#8
OldOneEye said:
Depends on when you consider it ripe. I like about 50% amber, so I start my flush when I'm around 20% amber. This usually gives me enough time to flush salts.
Click to expand...
I don’t really know, first grow so I don’t know. I was told cloudy is peak thc levels and amber was more of a couch lock. I’m growing a hybrid, 60% indica 40% sativa. Indica is my favorite so cloudy or amber wouldn’t really bother me at all. I don’t mind if I’m chained down to my couch lol, it’s just when to start it that confuses me. I have the entire General Hydroponics nutrient lineup except RIPEN because I wasn’t planning on feeding 9 weeks in. I planned on using florakleen around week 7 and was expecting to harvest around week 9 possibly. Florakleen is supposed to get rid of everything supposedly, so I guess use florakleen whenever my trichomes get about 40-50% cloudy give it another 7-10 days of just clean ph water and I should be good right? And harvest once a little amber sets in
 
Reactions: OldOneEye
Quote Reply
A

AlmightyJumpman

Posts
36
Reactions
20
Joined
Dec 17, 2024
Points
8
Feb 19, 2025
#9
ArtfulCodger said:
I don't do a traditional flush. I taper down base nutes, starting two weeks before chop. It will depend on pot size, how much and what you're feeding, watering frequency, how big your plants are, and probably other factors. With your longer drybacks, I'd aim for 2 EC/1000 ppms in the pots two weeks before chop. I'd continue mag sulfur in the penultimate week, and then water only in the last week. But that's a guess. If someone has experience running your media in your style, listen to them.
Click to expand...
I started using floralicious plus and liquid koolbloom on the beginning of week 4 of flower but I already had everything else from the lineup from general hydroponics. I water about once a week, so you say don’t feed in NPK if I plan on flushing but it’s cool to give it cal/mag in the last few weeks? Do I add Cal/mag and Silica? My plant itself is a decent size but my buds are small. I’m on week 4 day 3 flower. That picture was a week ago but same concept
 

Attachments

  • IMG_0430.jpeg
    280.6 KB · Views: 1
Reactions: OldOneEye
Quote Reply
O

OldOneEye

Posts
646
Reactions
1,135
Joined
Dec 21, 2024
Points
143
Feb 19, 2025
#10
AlmightyJumpman said:
I don’t really know, first grow so I don’t know. I was told cloudy is peak thc levels and amber was more of a couch lock. I’m growing a hybrid, 60% indica 40% sativa. Indica is my favorite so cloudy or amber wouldn’t really bother me at all. I don’t mind if I’m chained down to my couch lol, it’s just when to start it that confuses me. I have the entire General Hydroponics nutrient lineup except RIPEN because I wasn’t planning on feeding 9 weeks in. I planned on using florakleen around week 7 and was expecting to harvest around week 9 possibly. Florakleen is supposed to get rid of everything supposedly, so I guess use florakleen whenever my trichomes get about 40-50% cloudy give it another 7-10 days of just clean ph water and I should be good right? And harvest once a little amber sets in
Click to expand...
50% amber is IMO where the plant can be all it is meant to be. Weight, ripeness,peak THC levels.
If you want an active, up beat high......Sativa
If you want to relax.....Indica
True the more amber, the heavier the high.
I'm a 50 plus year smoker, so take that into account as well.
Your plants sounds about right. Just be a little flexible i n your timeline

Hint: look for 30% amber use that as your template.
 
Reactions: AlmightyJumpman
Quote Reply
A

AlmightyJumpman

Posts
36
Reactions
20
Joined
Dec 17, 2024
Points
8
Feb 19, 2025
#11
OldOneEye said:
50% amber is IMO where the plant can be all it is meant to be. Weight, ripeness,peak THC levels.
If you want an active, up beat high......Sativa
If you want to relax.....Indica
True the more amber, the heavier the high.
I'm a 50 plus year smoker, so take that into account as well.
Your plants sounds about right. Just be a little flexible i n your timeline

Hint: look for 30% amber use that as your template.
Click to expand...
That’s why im asking you guys, I want knowledge from anybody who would respond. A bunch of this stuff is just preference but with this type of stuff, I want suggestions and once I put some of it to the test, then I’ll have my preferences. Thanks
 
Reactions: OldOneEye
Quote Reply
A

AlmightyJumpman

Posts
36
Reactions
20
Joined
Dec 17, 2024
Points
8
Feb 19, 2025
#12
OldOneEye said:
50% amber is IMO where the plant can be all it is meant to be. Weight, ripeness,peak THC levels.
If you want an active, up beat high......Sativa
If you want to relax.....Indica
True the more amber, the heavier the high.
I'm a 50 plus year smoker, so take that into account as well.
Your plants sounds about right. Just be a little flexible i n your timeline

Hint: look for 30% amber use that as your template.
Click to expand...
Do you only water during your flush or you add something? Like before I thought floralicious would have been perfect but it has 2 parts nitrogen. The rest is just P and K. I don’t see that amount of nitrogen fueling the plant a whole plant, deficiencies will for sure show up so it’s still doing what a flush is supposed to do. Just with added benefits of like humid acid. Koolbloom is 0 parts nitrogen and only P and K. Literally only a ml or 2 per gallon can’t hurt right? Not of both but one or the other. I don’t know, I maybe jumping the gun and trying to do to much but I don’t think I’m wasting much money if I’m only putting just a squirt
 
Quote Reply
O

OldOneEye

Posts
646
Reactions
1,135
Joined
Dec 21, 2024
Points
143
Feb 19, 2025
#13
AlmightyJumpman said:
Do you only water during your flush or you add something? Like before I thought floralicious would have been perfect but it has 2 parts nitrogen. The rest is just P and K. I don’t see that amount of nitrogen fueling the plant a whole plant, deficiencies will for sure show up so it’s still doing what a flush is supposed to do. Just with added benefits of like humid acid. Koolbloom is 0 parts nitrogen and only P and K. Literally only a ml or 2 per gallon can’t hurt right? Not of both but one or the other. I don’t know, I maybe jumping the gun and trying to do to much but I don’t think I’m wasting much money if I’m only putting just a squirt
Click to expand...
I use my base nutrients, the micros and macros, as a flushing agent. At about 1/4 strength, during the first flush.
2 gal. container, 2 gals. of ph'd water with base nutrients quarter strength.
3 or 4 days later, flush again during this and any other flushing before harvest only water. Ph doesn't matter.
And I only water until I have good run off.
Pro Tip I was reminded of recently....
Less is more
 
Reactions: Bobcat.Branch and AlmightyJumpman
Quote Reply

ArtfulCodger

Posts
2,080
Reactions
4,174
Joined
Apr 23, 2021
Points
263
Feb 19, 2025
#14
AlmightyJumpman said:
I started using floralicious plus and liquid koolbloom on the beginning of week 4 of flower but I already had everything else from the lineup from general hydroponics. I water about once a week, so you say don’t feed in NPK if I plan on flushing but it’s cool to give it cal/mag in the last few weeks? Do I add Cal/mag and Silica? My plant itself is a decent size but my buds are small. I’m on week 4 day 3 flower. That picture was a week ago but same concept
Click to expand...
If I'm in soil, I add calmag to non-feed waterings through the third week of flower. After that, I switch to mag sulfur. I don't use silica (well, except for diatomaceous earth, which is made of silica, but isn't a great source for plants). In coco, I don't use calmag...there's a lot of Ca and Mg in my base nutes.
 
Reactions: OldOneEye and AlmightyJumpman
Quote Reply

amneziaHaze

Posts
2,604
Reactions
4,913
Joined
Sep 21, 2024
Points
263
Feb 20, 2025
#15
AlmightyJumpman said:
I know somewhere around week 6 you are supposed to flush a cultivar that has a 8 week flowering period, what about one that says 8-10 weeks? Do I just wait until my trichomes start to get cloudy and then flush? And one more thing, after the flush, and i was told to only water with just ph water until harvest. Can I use floralicious plus with that watering? Meaning after I flush my soil completely with florakleen, can I follow up with just floralicious, after 24-48 hrs passed for the last few weeks? The bottle specifically says it’s a flavor and aroma booster. Thought it would be perfect to just top it off with that, I could be wrong. At that point, I won’t be using nitrogen anymore except the 2% in the floralicious plus, is 2% a lot?
Click to expand...
You should flush with regular nutes minus the nitrogen.that way leaf dies and doesnt grow much and potasium and other sruff keeps the flower growing
 
Reactions: AlmightyJumpman
Quote Reply
A

AlmightyJumpman

Posts
36
Reactions
20
Joined
Dec 17, 2024
Points
8
Feb 20, 2025
#16
amneziaHaze said:
You should flush with regular nutes minus the nitrogen.that way leaf dies and doesnt grow much and potasium and other sruff keeps the flower growing
Click to expand...
This is the feed chart I follow, how much mL to use of P and K?
 

Attachments

  • IMG_0360.jpeg
    188.8 KB · Views: 4
Quote Reply
O

OldOneEye

Posts
646
Reactions
1,135
Joined
Dec 21, 2024
Points
143
Feb 20, 2025
#17
I would be somewhere between 1/4 and 1/2 light feed schedules, using only the basement nutrients.
 
Quote Reply
Page 1 of 1 · Replies 1–17 of 17
1

Thread info

Replies 16
Views 2,368
Started Feb 19, 2025
Latest post Feb 20, 2025
Starter AlmightyJumpman
Forum General Indoor Growing

Latest posts

  • 2026 Outdoor Grows! let's see em!
    • Latest: GrowinShurts
    • 6 minutes ago
    General Outdoor Growing
  • Cpurola's Outdoor grow in Southeast Michigan 2026
    • Latest: Oldchucky
    • 17 minutes ago
    General Outdoor Growing
  • how to Bubble washing and tips 2024
    • Latest: GNick55
    • 28 minutes ago
    Concentrates & Processing
  • Outdoor Gardeners / Growers. Let's Talk-Show Gardens-Soil-Methods-Pests-Critters-Gardening Kind Of Stuff!
    • Latest: grayoldnproud
    • Today at 9:26 AM
    Other Pics
  • Jealousy (feminized) from Seed Supreme
    • Latest: jadins_journey
    • Today at 8:09 AM
    Grow Diaries
  • Home
  • Forums
  • Medical Cannabis Cultivation
  • General Indoor Growing
  • What to feed after flush?
  • Contact us
  • Terms and rules
  • Privacy policy
  • Help
  • Home
Community platform by XenForo® © 2010-2026 XenForo Ltd.
Menu
Log in

Sign up

  • Home
  • News
  • Classifieds
  • Forums
    • What's new Featured content New posts New Articles New articles New products Latest activity
  • Social
  • Strains
  • Live
  • Learn
  • Brands
X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?

X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?