It's amazing to see how much and how fast these plants can grow. They seem to really enjoy the grow nutrients that I began adding to the water. I know a lot of people say not to add nutrients to the water for Autos, but it was suggested by the owner of White River Grow Pro, in Vermont. It appears to be making Hansel and Gretel quite happy.
This is the problem with cannabis, even in such a modern time theres so much misinformation and so many ppl misstating information..
yes they need nutrients. Period.
In most soils there is enough nutrition for 1st 3 to 4 weeks so you can get away with ph ranged water. When the nutrition has almost depleted out of the soil you start adding nutes to the water. In soiless mediums you need nutrition basically from the start. Hope this helps.
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A few years ago I met a professional photographer who shot marijuana for advertisements. They start with a perfect looking bud. Sometime bud is grown specifically for it's color. They will mess with the nutrients, temperature and other conditions to force the plant to produce the desired colors. Then add in some professional lighting and time in Photoshop turning up the colors that are currently popular. So, these days most professional photos will be more frosty or purple than occurs naturally.
Substrate, nutrition, experience, temps. All play a roll. Plus in some cases I think they grow just a few colas on a strong plant to get a big fat bud on picture. Cor morphing happens late flowering. Especially if a proper flush and fade time is given.