How long from seed to flowers?

So I've been trying to grow a bunch of pretty flowers, and i was just wondering, how long does it take before the flowers actually start growing? when ever i go to the store and see like pots for sale with flowers already in them, they are small pots with small plants inside, and the flowers are already on them.. I've been growing these flowers for a couple of months now and they are getting big, but still there is NO sign off flowers... and I'm also growing a whole bunch of peppers and the same goes for the peppers, all the pepper plants i see are small and have lots of peppers growing off them.. how big does the plant have to get before it starts producing peppers, (and the same question goes for my tomatoes, strawberries, etc).. anyone know?

It depends.

Different plants will flower at different times.

Most plants can flower at any SIZE, the limiting factors are AGE of the plant, and number of hours per day of LIGHT they get (ie SEASON).

Typically, outdoor grown vegetables (tomatoes, peppers, eggplants, etc) will flower based on MATURITY. Assuming conditions (temp, nutrients, water, pH, etc) are otherwise OK, once the plants hit a certain age they'll start to flower automatically.

On the other hand, many of the the nice outdoor flowering plants people like for their yards and such will only flower once per season (ie YEAR), either the spring or fall.

And some plants won't flower until they are a year (or many years) old.

is there any way i can force them to flower by controlling how much light they get?

It rather depends what you're growing. For example if you've gone and planted a Puya raimondii, well you're rather fucked

Why not research what you are planting and then you will be able to answer these questions yourself. I mean come on man, you're asking us how to get your plant flowering and you won't even tell us what it is.

well i have a bunch of flowers, not sure what they are, kinda got them from a 'mix' but for vegetables, I'm growing Cayenne peppers, Habenero peppers, tomatoes, strawberries, radishes (these ones are actually doing well) and I've just purchased some Bhut Jolokia seeds (Ghost peppers) from the internet, hopefully all goes well!