Crimson Wood

There are 4 trees at Lower Ascent, which are all quite easy to reach if you have the marker.
There are also 5 trees at Path of Strength, the side opposite of Typhons, but they're much harder to reach. These 9 crimson trees are the only ones in the entire game.

It's gonna take some dedication to forge this bow. I spent a week doing this for who knows how long per day. I ended up getting the last 25 for free, too, so it'll probably take even longer than that.

Dedication indeed. So far I only have about 15 pieces of Crimson Wood; it's a start, but it's still time-consuming. I've also been nabbing all the pieces of Crimson Wood being sold in the FM (as long as it isn't ridiculously high in price).

But I want that bow. >.o What are the trees' respawn time? I know it certainly isn't instantly.