When to start flush

Hi like minded persons, I need a little advice if anyone could help. I have a few big buddha cheese on the go. They are roughly 20inches high and are on day 42(ish) of flower under 400w hps and looking great. The thing I'm a little stuck on is when to start flushing. The pistels are just starting to turn colour, maybe about 15% colour change at present. I last fed canna flores on the 8th of sept and am just debating wheather that should be my last feed before water flush for a week or two. What do you think? When would be the best time or reccomended time to start flush. I know I have read 2 weeks before the chop but I,m not sure when the two weeks is, I guess about now but, what do you think.

Thanks folks, one happy chappy

well, just 2 weeks from when u think there ready. if u can see the trics and they are ready then start flushing now.

although 42 days... that doesnt seem right, im not sure on there flowering time but id leave them abit longer.

got any pics?

Hi Mr Smokeh, thanks for your time. I'd certainly agree with you that they need a bit longer. According to big buddha web site flowering time is between 49 and 63 days, Just counted the dates of flower and 7days from now would be about 49days. I have been checking the trics for a few weeks with the poor magnifier I have and they seem clear, I will indeed purchase a better magnifier over the next few days and, I just don't know if I should give it another feed tomorrow or start the flush process.

Heres a picture or two, not the best quality but it something I guess.

if the trics are clear then uve got a few weeks left yet... depending on the kind of high u want.