how are tulip bulbs formed?

like every bulb it starts from seed... the seed falls to the ground and when given the right environment it sprouts and grows leaves...most bulbs won't flower the first year because they save up energy to do it the next year... so the plant stores up all the energy it gains in its first year to help produce its flowers and leaves the next year... after it is done storing up in its first year you have a bulb it then sprouts up and flowers the 2nd year and during this year after it flowers it starts storing up more energy and produces little bulb offshoots... (you can see them if you dig em up) that is how a bulb reproduces asexually (without pollination and producing seed) and you can take the offshoots off to have another bulb...

Bulbs are not grown from seeds. Bulbs multiply, then you can dig them up and seperate them or spead them out.