when i got these they said 40cm to 60cm would somone tell me @ what stage veg,flowering ECT are they speaking about.
They are speaking out of their arse is what they are doing. By your 4th grow you should really know by now that cannabis can be any ize you want and that no breeder could possibly tell you what size it will be. The very best they can do, which mainly depends on whether there is a uniform pheno or if it's a crapshoot, is tell you that it might be a bit taller than normal, or a bit shorter than normal, but the instant they put an actual number out there they are talking shit, plain and simple.
You can grow any strain any size, it is entirely upto you, while some strains might be a little better with regard to trees or tiny 12/12 from seed, any plant can be grown small and any plant can be grown large. except autoflowering naturally but they're stupid so i'm not gonna include them in my notion of "plants"