Brown Pistils-Normal Flowering?

As this is only your fourth week of flowering (hooray!! a normal photo period plant and not another bloody auto!!), I personally would be worried about the amount of brown pistils already. Like Esoteric_growing said, I would be conducting a very thorough search for any male flowers. Usually for the pistils to be this brown and so many of them, is an indication of fertilization having taken place. Extreme heat can also cause the pistils to wither and turn brown, but that usually takes quite a while and very hot and dry conditions, bordering on close to death conditions, and I can't see that happening in your indoor grow. Normally flowers look like this after 7-8 weeks not 4, so I would be doing a very careful and thorough search for male flowers, unfortunately. You may have a "freaky" plant in which this condition is normal, but that would be rather rare and I hope for your sake, that you do have a "freak" and not a hermaphroditic plant. Hope this helps,.... Organoman. P.S. - I would be going easy on the wood ash, it can cause rather alkaline conditions on soil, if kept up for too long.

Dude.... you're at week 13...I would be surprised if there wasn't orange hairs 👌 looks like you have a decent camera phone, zoom in as close as you can and see if you can see the trichomes. Looks as though your nitrogen is high though. Other than that your girl looks fine 🤣👍👊🤘

Some strains to change early... too close of light can also make them go brown... Happy Growing😵!

When you say week 4 you mean day 21-28 flower? If so that is unusual and I would be checking for any male balls or bananas to make sure pollination hasn’t taken place. Just to add there are some strains that the hairs turn red/brown as early as this but they are rare. Also wind burn from a fan too close can also cause this although I doubt this is the cause here. Hope this helps buddy👍