Kratom from Seed to Plant (in non tropical climates)

[Time Impala]

Hello dear community .... I am currently writing an article on the subject of Kratom from seed to plant and am looking for one or the other experience report, which I could publish in the article. You can find the article so far here "https://arbos-germany.de/kratom-in-deutschland-anbauen/" .... So far it is more of a draft to be honest. Especially about information regarding fertilizer, EC and PH value I would be very happy. I am interested what experiences you have made in the us or in Europe.

Thank you very much!
Sorry for my bad English... I tried my best