I have grown lobelia erinus from seed. They are easy to grow though seedlings are tiny. I had a very hard time growing Verbena (garden variety hybrids not the perennial species). They were hard to germinate and keep alive. I have grown dozens of annuals and perennials from seed and it was the hardest, harder than delphiniums (which I found to be very hard too).

OMGoodness. Delphiniums are the hardest! What about Geraniums? Any luck?

I have never grown geraniums from seeds so no clue. You should clarify which geraniums are these.

If you are speaking of Cranesbill (geraniums), I find they are very slow to germinate.