Hi..I'm a first time grower growing BigBud auto from Seedstocker. My plant is entering its 68th day and it is on the 4th week of flowering. My questio

Based on the pictures, you have a long way to go... There are many potential reasons you have some early color in your pistils. you can easily eliminate heat as a possibility. Your leaves look healthy. Maybe a couple with some curl at the tip? that's a sign of too much N. "clawing" "the claw" etc... Light is a more difficult question. Looks like it is mid-level? So, probably not light, but i'll include this anyway... Too much light depends on how much CO2 is available in the air... also depends on rate of transpiration, which is impacted by temp and RH%. If leaves are really droopy long before lights out, that *could be a sign there is too much light relative to these factors and the plants are just shutting down early for the day in regad to photosynthesis. Google about DLI. Try to figure out how many umol/s you are providing from light spec sheets, if accurate, and then based on area of coverage convert that to PPFD. this along with hours per day will give you DLI. 35-40 DLI is going to be a ballpark ceiling with ambient CO2 and 20ish is the floor, but probably really loose buds. You can eliminate light stress as a factor with this information in tougher contexts than present. good for future reference anyway. As far as when to harvest.. Use a few factors - Density of buds, proportion of colored pistils, and color of trichomes (need a 30-60x magnification.. cheap scopes for -10usd is plenty good enough.. like a currency checker). You have a long time.. don't try feeling density until the other 2 factos start pointing in right direction. Buds shrink significantly when drying.. so expect much larger buds on the plant. how much pistil coloration or amber? well, there's all sorts of opinions on that. I'd suggest googling and look at the range of suggestions, then over the next few grows try early, middle, late and figure out what you like best... you may find you want more amber trichomes for bud you smoke before bed. in theory, should work that way. Guesstimates: pistils - probably at least half. trichomes - 10-70%. All of these factos will vary by genetics too. It's something that takes a few harvests before you feel comfortable in a routine and some idea of what is to come. I prefer less amber, but each to their own. look back on these pics after a couple weeks.. you'll see how much plumping is about to occur of the calyxes at base of those pistils. It won't be so hairy at end, typically. side note -- look for nanners or pollen sacs. that's another cause of early coloration of pistils.