Why do some people not trim leaves immediately???

is there a reason for leaving the leaves on for a few days after chopping?

i like to with some strains. letthe leaves dry fast. leaveing the bud green still. the leaves break off really nice. i just roll them around. then i dry the bud some more.

I have heard a few people say it increase taste and smell.
I have not tried it myself (but I will) although I am sceptic of the effect.

I find it a lot easier to trim first.

Slows drying time

I hung mine complete only because I didn't have time to trim right away. I cut the big fan leaves after 1 day, going to trim the smaller leaves before jarring it. Last plant got a full trim after chop.. I'm not sure there's a difference maybe just preference? Some people say drying whole slows the dry making for a smoother smoke.

A reason as to why you shouldn't dry the full plant is that it's a lot easier for mold to set in, ventilation, temperature and humidity has a lot to do with that as well.
But untrimmed plants are harder to dry properly and takes longer.

Most people, by far, trim first then dry.

trim fan leaves, leave sugar leaves till crispy, then you trim that and have stuff for butter,oil,hash.