They are most prolly like that because of lack of sun. They need full on sun for as long as possible. Shaded sunlight makes the plant shoot up like that to get the sun. Once they have lots of sun, they bush up. Unless its a strain that doesnt. Once in full flowering(not early flowering) they will stop growin and yes the fan leaves will yellow and start to fall off because of budding. Ive lost alot of leaves on one of mine because she focusing all that energy on the buds. No im not and expert, its just shyt I have observed. Im also a newb..







http://boards.cannabis.com/outdoor-g...what-kind.html