How close to harvest?

Hey! Those pistils(hairs) are still very white and pointing straight out. Seems like some might be starting to change and curl soon.. I'd say anywhere from 4-5 weeks. Harvest window opens when you start getting amber pistils. The best way to check is looking at the trichomes on the buds with a 60X magnifying loupe. (You can buy one in any bazar/shop for like 5-8€/$.. ) and trust me it's definitely worth having one around. Not only you'll enjoy looking at those trichomes up close but you'll be able to harvest at the correct time by using it. Clear trichomes haven't reached their full potency, cloudy ones are full of THC and amber are losing THC while gaining CBN. I harvest when after examining and finding 70% cloudy trichomes and 30% amber trichomes. For me that's a prefect combination, depending on the strain as well. With some strains I go with lower amount of amber trichomes but always attest 10%. This really depends on what type of high your looking for. As for what they look like, clear trichomes look like shiny glass, cloudy like plastic and amber like resin Hope this helped. Good luck and happy harvest!