It looks like some people have given a very negative impression of growing kratom in the United States. The amount of water it receives, the amount of sunlight, heat, and humidity, frost, and cold, are all variables that growers in the United States need to be aware of as they maintain their plant. The short answer about whether growing Kratom at home is: yes, Kratom can be grown.
This plantation heavily marketed their product as Genetically Grown", which is why, to this day, some (incorrectly) say that Maeng Da is genetically engineered; yet there is a world of difference between genetically modified kratom, and genetically grown" kratom.
The surest way to encourage the tree to grow is usually done exclusively indoors or in a temperature-regulated greenhouse, unless it is grown outside in a temperate region when it is warm enough and brought inside when temperatures drop during the cold season.
Growing Kratom outside of its natural habitat is new territory, and the next few years will offer test results from the many people out there growing kratom and reporting on what they've learned. Kratom tea is made by brewing leaves of the kratom tree. You can keep the seeds in the shade of adult trees.
bulk kratom plants naturally grow in tropical environments. Using "grow Kratom trees" or some search criteria like that. Another way in which you could grow kratom plants would be with the help of cuttings. Make sure to learn all the whereabouts of your vendor, before you buy Kratom seeds or any other part of the Kratom plant.