My German catchfly came to me as a bonus in a trade. It didn't do so well. Or maybe it just needs more time. I only have 1-2 sprouts in each container. If I can collect some seeds, I'll sow more the winter after it blooms. I really like the pictures I've seen.

Not about to count the total number of containers that have spouted. I have planted some out and am instead, keeping up with that. I think.

Seems the German Catchfly had at least 80% germination overnight and the temperature was only around 45F. I sowed them on February 17th. All containers are located in full sun if that makes a difference.
As far as counting sprouted containers, I keep a database.

Vera

Last year I think I had 300% germination of Catchfly. And, I thought I had a ton of sprouts of Angelica--but actually, I was using a jar to press down soil after sowing, and the jar moved some Catchfly seeds into that container! (This year I'm tamping dirt down using my fist and brushing it off each time!)

SO far I have sprouts of :

silen Dwarf pink star sown / alyssum carpet of snow in 2 containers heavy sprouting (teeny still) about 1 week old.
White hollyhocks have light sprouting
Canterbury Bells light sprouts
rose mallow shrub spotty germ(self collected)
hyssop light germ
Virgina stocks Medium germination
Articos extra light sprouts VISIBLE pre germ.
Pansy gold VISIBLE pre germ
tassel flower heavy pre germ and that was NOT there this AM when I looked.

Yellow rubicka light germ

pansy swiss light germ
sister larkspur light germ
Chinese lanterns spotty germ

So tell me again I SHOULD NOT wory about the stuff that has not sprouted like Cone flower corn flower Bach buttons Fuschia, Aquilla

The ex lg MG is 12.00 at Costco....