How do I know when its about a week prior to harve...

I start flushing when most trichomes are milky. Two week flush but sometimes longer. You'll have amber trichomes and it's up to you how much amber you want. I'd rather flush earlier than later.

Well, it's a long ways off but you can figure it out by two methods. First, check the estimated harvest date given by the seed breeder/vendor to get a ballpark figure. Secondly, inspect the buds for signs of ripeness, such as pistil (hair) darkness & trichome coverage. Once the buds are ripe you have a 2-week window to decide when to harvest based on what kind of effects you want. This is based on trichome color. You'll need a magnifying glass or jeweler's loupe to see them up close, but you want to harvest when the trichomes are tall & mushroom-shaped (bulbous) with a milky white color...maybe a few amber or dark ones if you like a more sedated high. Make sure to check the trichomes on the calyx, not the leaves since they mature much faster. New growers tend to harvest about 2-3 weeks too early, so if in doubt, wait another week or two before chopping. You can start your flush a week before harvest by just feeding plain pH'ed water with no nutrients, but flushing is not necessary for the safety or quality of your end product. It's more of an old wives' tale or individual preference. I just do a quick ice water flush a couple days before harvesting mine. 👍

Hi @Steve420! When your plant goes into flower you will see those lovely nugs growing and getting bigger and bigger.. soon as all those WHITE pistil hairs turn color, I would get a jewelers loupe to see those trichomes on the buds. They will start out clear, then cloudy, then amber. I personally like to grow them out till I feel they can't get no bigger then I start the water/flush. I just flush with ph water, triple the amount of my growing medium. And I will flush feed her water for like 2 weeks before chop. I noticed this last time that I didn't water 2 days before harvest and the plant was much easier to trim and I didn't have to wait on the cure to taste the nugs... she was kick ass off the plant, no lie. Good luck and if you have questions, keep asking... we were all noobs at the beginning. Witchy wishes for a Killer Grow!

boss ..............................for now u r so far away from harvest................i woudda worry about size of the pot and tem and light an not to overfeed................................patience is the key🙀

Hi Steve, i wont talk about harevest and flushing when i look at the lil one.....You seedling does not look quite Happy, and did not grow at all=?What kind of soil are you using=?

Hello @Steve420. By checking the trichomes with a microscope like this one ( https://www.amazon.com/Forrader-Pocket-Microscope-Currency-Detector/dp/B00JEKXBQ2 ) . When you see the first amber trichomes its time to flush. Usually depending from the conditions after about a week sometimes two they are ready to harvest. Harvest when the trichomes are 80% milky-20% amber for a head high and 80% amber-20% milky for a body stone feeling. Happy growing ! 👊

When the calyxes swell, then you are a week before harvest. The calyxes are the little balls things on the buds where seeds would form if the plant was pollinated

only way to really tell is to check the trychomes, you want to kinda of gage the rate of them getting cloudy, then when they're mostly cloudy like 70/80%, you'll want to do a 2 week flush in soil. you can plenty of time and any number of things can push the date forward or backwards a couple of weeks, but two more weeks than what's advertised is usually a safe bet in case you're planning around the grow. hope this helps ! 🚀