I can't help you, I have trouble just getting these to germinate! Compared to me, you are doing fantastically.

Thanks socalgal_gw!

Yeah, my germination rate for both these & my begonias was about 25%....... LOL Looks like I'll be buying my shade annuals this year from the local nursery........ My only salvation is I'm able to grow Coleus reasonably well, so I have 250 of those.......

Could be the quality of the seeds maybe too old try new ones fresh soil or coconut coir and organic fertilizer such ad biobizz bio grow made from dutch sugarbeet

Thanks sun forum! Seeds were new, but I question their quality.......... very poor germination........ With seed origin being China & Japan, ya can't hope for much...... There is an outside chance I fertilized a bit too much as well, since NG Imps are very light feeders.... Seedlings have slow to no growth..........