Observing my little mimosas, I have some questions. I'm sure more will come up.

Q: Why do they close/fold their leaves over night?
I haven't found any hints. Some ideas I had were that folded,
a) the leaves are less of a place to stay for caterpillars and bugs.
b) the surface area is reduced by up to a theoretical 50%, which means less water evaporating.

Q: How do they know when to fold their leaves?
I noticed that most of my mimosas do it around 9PM, even though I turn off the light after 10PM and it gets dark outside at 6PM. One does it around midnight. I guess it's not strictly photosensitivity - or if it is, it would have to be a timer from dawn instead of sensing dusk?

Q: How long until mimosas from seed have significant DMT in the root bark?
A: From various sources including other threads on the dmt-nexus, consensus is ~3 years.

Q: Is that time quicker for stem cuttings taken from a plant aged 3 years?
Probably that's also 3 years. I'll know for sure in 5 years max. I've read that stem cuttings don't like to root at all. Has someone tried already?

Q: Is that time quicker for root cuttings (up to 1cm x 10cm pieces of root with sprouts)?
It would make sense to me, given that older, thicker roots are reported to have stronger bark than newer, thinner ones on the same tree. I imagine that root cuttings grow thicker roots more quickly than stem cuttings.

Q: What nutrients (or lack thereof) are helpful for DMT production?
I've read in several places that biosynthesis in plants almost universally goes via tryptophan. But I haven't found how to increase that.