Cold stratification... is it really necessary?

[zul77]

I bought VFT seeds almost a month ago. Since I got a plenty of them so I can do some experiment on the seeds (based on what I've read in this forum and some where else).

18 of them I sowed on moisturised dried SM peat and put them in the refrigerator. And another 6 of them, I soaked in rainwater in a small transparent container.

After two weeks I can see a white thing came out from 1 of the seeds that I soaked in the rain water. I took the seed and put it on LSM. On the third week, I can see some part of the seedling coming out from the seed.

So my questions is, should I wait from 8-12 weeks for cold stratification since the one without cold stratification took less time to germinate?