With the aerogarden, I would flower at as least as 3 weeks from dropping the seed in. It may be possible to go as early as only 2 weeks from dropping the seed in. But I wouldn't wait any more than 4, 5 weeks at the most. This is mainly due to the fact of keeping the plant as small as possible. As you can see I only have 1 plant in here now and its taking over.
What I do when adding nutes is this.....(assuming the resivoir has already been filled with a gallon of water and nutes and its been one week like this...Time for new nutes) I take an iced tea pitcher that has markings for different measurments of liquid, up to a gallon, and fill it up with cold-lukewarm water. I then take a big pot and pour in some water and add 1 nute, fill with some more water and add the next nute, more water, next nute, and the rest of the gallon of water and any other nutes. Stir it up check ph, make adjustments if needed, stir check ph again... I then lift the resivoir up and out of the base and place near the pot of nute water....open the resivoir door and lift the grow surface up from the resivoir bowl and rest it on top of the pot with the roots dangling in the nute water...Pour out the contents of the resivoir, (rinse out and wipe out if you feel neccessary, should be done once or twice throughout the grow)...Then I place the grow surface back onto the empty resivoir, being careful not to damage the roots...and pour the new nute water into the resivoir...Then place back onto the base of the aerogarden and your good to go...
For the first few weeks you should use about half the recommended amount of nutes, then you can build up to more...be very carful not to use too much nutes, its very easy to do, less is better, and keep a good ph...
Peace
-Tek
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