[alpiner]

Just checked my seed boxes.
Mirabilis var Globosa
4 of 15 in covered coco peat(water tray) germinated. 2 of them has >2mm sprout.
1 of 15 in covered sphagnum moss(water tray) just started to germinate.

Too early to draw conclusion, but coco peat seems to be lazyman's choice: No chopping of sm, and no need to spray by using water tray. Covered sm in water tray seems too wet.

Mirabilis
0 of 10 in covered sphagnum moss(water tray)
0 of 10 in covered coco peat(water tray)
0 of 10 in covered sphagnum moss(spray)
0 of 10 in covered coco peat(spray)
0 of 10 in not-covered sphagnum moss(water tray)
0 of 10 in not-covered coco peat(water tray)

Btw, thx for the reminder, thought it's too early to look.