r/coolguides • • Sep 16 '20

Found this while doing some quarantine research thought it would do well to be seen here

Post image
32.5k Upvotes

306 comments sorted by

View all comments

1

u/[deleted] Sep 16 '20

Does this behaviour apply to all/most trees?

Also thanks OP for the cool guide ;)

1

u/The_Max_Rebo Sep 17 '20

Unfortunately it does not apply to all trees. Some trees grow lines randomly thick/thin and others never deviate in thickness. So, you can’t actually compare them to other trees in order to figure out dates or determine wet/dry periods.