FlytrapCare Carnivorous Plant Forums

Lots of factors will influence it. Age of the plant, size of the stalk, photoperiod, temperature, etc. It'll open when it's ready.
I've had flowers go from the nub making an appearance to bloom in a week, and others take a couple months. Patience.

Probably not, unless it's a Tarnok. The flower will have the same shape as the next one. Color may be an indicator, but if it's a cross then it'll show the dominant parents coloration. Some smell different, but, again, if it's a cross then the dominant one may win out in a smell contest. Especially if it's flava.
The best indicator of species is usually pitcher shape, many times hood shape. Even then it's a guessing game as there's no way to be sure it's "A", unless you know what it is, you may have to be happy with a No ID.

I had a single flower to bloom on one of my mystery pitchers from California Carnivores. I agree that going by smell can be difficult. Going by the aroma, I googled and researched everywhere trying to find a variety or cultivar that was named S. gallus gallus domesticus, but never could find one.

I have a flower that never opened completely. It happened. To me all of the yellow sarr flowers look alike. The alata flowers, however, have a lovely smell. Flava, on the other hand, smell like cat pee.

I had 2 kinds of S. purpurea. The old one died from dehydration and the other one is the current one. I watched both of them produce their first flower. The older one took a month or a bit more but the flower was smaller and shorter. The current one took 1 and half months but the flower was bigger. So be patient.