Hi,
I winter sowed mine. They came up great. They are very easy to grow like the regular kind. I love the look of the blooms. I grow regular 4 o'clocks too but have never smelled them at the same time to compare.
They develop a big root that you can bring inside for winter just like regular 4 o'clocks too.
Remy

I have been watching this to see the answer and that is so good to know. My order for them (and a bunch of other things! :)) should be going out in the next day or two.

Thanks remy, that's great to know. even thou you haven't done a side bye side comparison, could you tell if the fragrence was at least a lil bit stronger?