Hi! this year i got a bean sprouter machine, it is very simple, just keeps temperature inside at 25 C and showers the seeds for a few seconds every one hour. I thought it would be ideal for germinating seeds that need no cold stratification. It does work well for mango seeds. However, i tried with small seeds like papaya, guava, and Jarilla caudata: put in a plastic cup with many holes for drainage but no soil, just naked seeds kept warm and humid in the machine. To my surprise, nothing of these has germinated! A real surprise, because papaya seeds from market fruit just thrown on the ground sprouted like weeds every springtime, guava germinated easily outdoors and all Jarilla seeds i sowed outdoors this past summer germinated - although no plant survived, the sly cats damaged the young shoots and the last one was destroyed because of heavy soil and strong winds of early winter while it was still too tender. Anyway, all those did germinate outdoors, but they are not germinating in the bean sprouter machine. Can somebody explain it?
After that, i put some seeds in clean potting soil and keep them moist in cut halves of plastic bottles at room temperature indoors, but those cut halves do not drain, they rely on evaporation for keeping not too wet. Even those in the potting soil have not germinated, about 5 days now. Some light of experience on the matter? thanks!