Thats Great, Northerner!
I'm also finding that a good dose of heat and sun is helping with the sprouting. I had a few more 'stubborns' pop up with about three days of decent warmth. I didn't label well enough though, so I'm not sure what some of them are. For the last three weeks we've had so much wind that even though the sun is out it's still quite cool, but all it took was a few days.

I WS'd some Euphorbia (kilamanjaro) in April and it really pulled through on those warm days. Its cool and rainy (aaak s***y, too) so I'm hoping one more warm spell after this will bring the Rudbeckias and Trollius (fingers crossed).

Cannas and tropicals are not good candidates for our zone. I'd sow those ones indoors.

Sharon