Glueberry from seeds.

I reckon that will be a 56-63 day finish. Start flushing at day 49 If you think it will be ready in 8 weeks. But I just checked another diary with the same seeds and he is at week 8 and still has another week to go although different environment etc so not a direct comparison. Normally If a seedbank says it’s done in 8 weeks you can usually add a few more days to a week on to that in my experience. You should probably invest in a cheap jewellers loupe to inspect trichomes which is the correct way to remove all the guess work and a quick YouTube search will give you good understanding of what to look for. Happy growing buddy and nice iced out buds👍