From a fellow grower: My seeds were different to what was ordered
I ordered BB Auto x 20 seeds
9 x plants in a single tent, all sprouted 100% but as they aged you could tell they were not all from the same batch of seeds
2 plants very small (400mm)and ready to harvest at 7 weeks from sprouting
3 plants are tall (800) will harvest at 13 weeks from sprouting
3 plants are mid size (500mm) will harvest at around 11 weeks from sprouting
1 plant looks like a perfect BB Auto at (600mm) ready for harvest at 9 weeks
The colours and leaf structures are all different between the 4 variations.
What you’re seeing are different phenotypes. Just like no 2 siblings look identical (often even identical twins). You’ve got the genetics from both parents coming out in varying degrees.
That’s one of the main reasons people will plant more seeds then they plan to harvest. With regular, call it 20 seeds, half are male (cull unless you’re breeding) gives you 10, see which are the strongest and best up to the number you’re looking to grow… and cull (or gift) the rest.
I have the EXACT same question and experience. I am totally new beginner, I only bought 5 auto-flower Bruce Banner seeds. I got 2 to germinate and grow but they are both extremely different looking…one is getting tall and the other is shorter and flowering. Any further observations or advice would be helpful and most greatly appreciated!
Individual cannabis seeds could at best be considered cousins. Do you look like your cousins? It’s not abnormal for plants to look different, particularly with autos.
Your plants would benefit greatly from more light.
I notice a wide variation of a strain some more Sativa others more Indica including Redural in the autoflowers. They all mostly end up close to the same but look rather different from each other growing. I’ve heard that it is hard to get a pure strain anymore, most of the strains have been mixed.