When will these columbine flowers bloom?

The link for them is here, http://www.parkseed.com/webapp/wcs/store... , and it does flower the same year it is sown, and is the only columbine that does. but, when does it bloom? it says late spring-early fall, but when should i sow them if i want themt to flower mid -late summer? it says if sown in fall it will bloom in spring, but if sown in spring it will bloom in summer. when should they be sown? should i sow them inside first? thanks. and i live in ontario canada zone 5.

When will these columbine flowers bloom?
If you can sow them directly outdoors, they will do better. Transplanting seedlings is almost always hard on them, and then they have to recover before taking off growing again. I would plant them now if you want them to be blooming by late summer or early fall :) Be careful they don't get overheated as seedlings though, not sure how hot it is near you, but it's been brutal here and I'm a zone 5 too down in the states.