I grew about 4 gerbera (store bought). They are huge and blooming profusely, I got so many to seed. I picked out the fattest seeds (which wasn't many) and planted them in organic soil mixed with perlite, well drained. Put pot in sun and kept soil moist but not soggy, never drying out. Gave it a month nothing grew! I've grown every kind of seed you can imagine, this is the first I've never had sprout! Could the daisies be sterile cultivars?