Well, definitely they will stay on the shorter side. They seem to have quite a few buds though! They started to smell but it is not overwhelming, actually rather pleasant and subtle. It's been 50 days but they don't seem to be anywhere near the finish line, I am guessing at least 3-4 more weeks... Hopefully it's worth the wait!
The largest plant seems to grow leaves almost vertically, not quite sure what that means. Trying to reach the light? It is pretty weird how different they are when being cared for in the same way.
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Looking pretty good! It's a shame you got a mutant, as it wont get anywhere near it's potential... however running 3 autos in there can be tight so at least it will give you a bit more room to play with.
I've been growing in a 2x2 for almost 4 years, so the advice i can offer is trying a single plant in a larger pot. Like, minimum 3gal but ideally a 5 or 7 gal. You will find you have a much better buffer for nutrient issues and you shouldn't get those discoloured leaves from your previous grows. My single plant drinks 2 litres per day in a 5 gal and the flowers are very dense without any leaf discoloration. I don't do anything special... water every second day and feed as needed. I like to use Canna Terra which is a peat based soil and gives you better growth rates than straight soil (but not as good as coco).
Good luck, I'm subbed and hoping you nail it!