Budding seedlings can it be done?

I was wondering is it possable to flower seedlings? And if not what is the youngest you can flower a plant?

They will bud on their own time if you start them on 12/12.
I don't recommend this, as it is rather more stressful to the plant, and anyway you will get piddilysquat for yield.
Best to wait until nodes go alternating, or about 6 weeks.

thanks