when to flower

hey everyone, im currently growing 4 plants from bag seed. they are all about 10 in. high and im starting to wonder when is a good time to start flowering. my grow space is about 2x2x5 give or take a few inches and i have a 250watt hps in ther with 3 4ft shoplights(flouro). i have planty of air circulation(exaust fan and another fan blowing on the plants) anyways when is about right size to flower. o and by the way im trying to atleast have two or three plants in there, but with the space i have im wondering if its better to two or three medium plants or one big ass plant. well im done writting

anyone a little advice would be much appreciated

2 X 2 = 4 sq. ft.

The most you want to grow in there is two plants.

A lot depends on the sizes but 2 plants will fill that up easy...if they;re nice and healthy.

You can start flowering anytime you like. That is the beauty of the indoor grow.

For maximum results...

Your plant has matured when it developes alternating stem growth. However it can be forced to flower whether you have them or not.

Also, you want to flower when you have developed nice secondarys from above the fan leaves nodes.

Its really all up to you...

The longer the veg, the bigger the buds and the more of them.

Plant will AT LEAST DOUBLE in height when switching to flowering so plan accordingly.

thanks harddon for your knowledgable thoughts on this subject. my beauties are goin to be about 13 inches when i start flowering, which is this wensday,cant spell, if i get two females then your saying they will be over two feet tall . im hoping to get around three to four ounces total from them but i havent gotten this far before with growing..either my parents found out or they just died, but this time there letting me grow, just this once though, lol. im using maxibloom and tons of love. basically what im asking is how much is your very rough and estimated estimate on my yield. much appreciated ;)

NO way to tell man. Not without seeing the plants.

But yes if you switch to flower at 13", you will have at least 26", prolly more... of plant.

Your 250W HPS will do wonders for them.

It all depends on what they look like at 13"

If they are gumby plants, or if they are bushy means 300% difference in harvest....

Pics help.

ill try to get pics up if i can find and figure out how to use my damn camera