When is it best to start flushing my plants

Hi again, just getting a little ahead of myself, but just wondering when is best to start flushing my ladies, with what and how much for how long, (take a breath ),
I am only on my 3rd week of flower, cheers guys

If you're using synthetic fertilizer you want to flush during the final 2 weeks of the plants life. If you're using organic fertilizer you really don't need to flush at all. You flush with plain ph'd water and usually with 3x the size of the container. So if you have a 3 gallon put you flush with 9 gallons of water.

Just don't start flushing too early. New growers often underestimate the finishing time for their plants. Add at least a week to the seed company's projected finishing time.

I would say dont go by the weeks after the light has been switched but to go by the tricome's. When they start to change and your happy with the weight the buds have taken on start to flush.

i just use tap water. some people flush for a week, some 2, some dont flush at all. 2 weeks to me seems overkill.

Cloudz2600 said:

If you're using synthetic fertilizer you want to flush during the final 2 weeks of the plants life. If you're using organic fertilizer you really don't need to flush at all. You flush with plain ph'd water and usually with 3x the size of the container. So if you have a 3 gallon put you flush with 9 gallons of water.

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Organic fertilizers don't need flushing? Do you think the plant can tell the difference between man made and organic particles? It does not matter what you use you still need to remove the active ingredients remainng in the plants make up. Using straight water you should flush daily for 7-10 days for medicinal grade, using a min of twice as much liquid as yu sually use to feed. Growing in soil requires addtional flushing.

This is the base I use with my product. I am tested twice a year through 2 indepedant labs and this method gives me the clenest product. By the way these flushing agents show up when tested so if your using Final Flush or something similar your not as clean as you think.

Pure water is still the best for a clean product.

I start flushing my plants 1-2 weeks before I decide to harvest. I want to get at least 2 waterings of plain water before I chop. More would be better though.

i am growing in coco and using canna a b and pk and booster thx for info guys

if you are feeding your plants correctly; dry and cure them properly; and reduce ppm's over the last few weeks then you don't need to flush in my opinion. i don't flush my soil or hydro plants anymore and have noticed higher quality buds and bigger yields as i am not stressing the plants at the end of their cycle.

Sir.Ganga said:

Organic fertilizers don't need flushing? Do you think the plant can tell the difference between man made and organic particles? It does not matter what you use you still need to remove the active ingredients remainng in the plants make up. Using straight water you should flush daily for 7-10 days for medicinal grade, using a min of twice as much liquid as yu sually use to feed. Growing in soil requires addtional flushing.

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Synthetic fertilizers have more salt in them than organic fertilizer. If you're trying to get all the chlorophyll out that's another story, although I don't see that point of that since the plants need it. As long as you don't over fertilizer and just continue to use water for the final stages of the plants life the elements in the soil should be used by the end of the life cycle. Salt however will mostly remain without a flush. Also what's the benefit of flushing several days in a row? Wouldn't that just over water the plant? A good flush should rid the container of all the nutrients. If you have to flush 7-10 times you're doing something wrong. I would flush using 2-3x the pot size instead of going by how much you usually water.

Also plenty of people don't flush like scooby said. If you're doing everything right a flush isn't needed. Most growers don't have their shit dialed in 100% and near the end of the grow may need to.

Sir.Ganga said:

Do you think the plant can tell the difference between man made and organic particles?

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Actually they can. Inorganic and organic nutrients both deliver what the plant needs, however the plant needs to use other resources and/or mechanisms in order to process those nutrients. Inorganic (ionic compounds, salts) and organic (carbon based compounds) are totally different.

Cloudz2600 said:

Synthetic fertilizers have more salt in them than organic fertilizer. If you're trying to get all the chlorophyll out that's another story, although I don't see that point of that since the plants need it.

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First of all why do so many people refer to inorganic nutrients/fertilizers as "synthetic"!!!!!? This is wrong and misleading. There's nothing synthetic about them! They are just ionic salts. Salts occur in nature all the time, what do you think the Great Salt Lake is? I guarantee you it is not a synthetic lake, it just happens to have a lot of sodium chloride in it...a salt. And now for the organic part...even though organic salts do exist, they are rarely used in any fertilizer. They exist as a combination of an organic acid with an inorganic base. Organic nutrients are broken down by microbes, bacteria, enzymes etc., which can then be utilized by the plants. Inorganic nutrients simply dissociate or ionize in solution. These ions can then be taken up by the roots. Sorry to bitch, but i'm just so tired of people saying wrong information about the chemistry aspect of growing.

I only flush with plain tap water for the last 4 days..