Modern, try an approach graft instead. It's a different style which is more suited to tropicals that don't go dormant.
A quick googlization will get you all the tek info you need,
I'll try this on my third attempt. My first attempt which is what I posted here failed. I think it's due to not allowing the graft to remain under wraps for long enough. I did a second attempt the start of Feb and I'll be leaving it wrapped for atleast a month rather than 2 weeks. May even leave it longer depending on how it looks. Under the baggy the psychotria did remain alive but the graft union was not strong. There did seem there was some union but it failed.
I have more psychotria growing and my 'kratom' are specifically grown for this experiment so it is fine.