Heartland hank mentioned 9 to 12 weeks from seed, this is correct. Most, large producing photoplants need about 3 months to veg for max output, sometimes longer. Magic takes about 14 weeks to get it to the point of blowing 1 ounce cola ,plus 3/4 to 1ounce market bud. They are pretty consistant that way usually, 1 3/4 ounces per each four foot plant. multiple tops seem to take from total production values, and leaves it about 1/2 ounce short.
So let um go, (next time) they will display there need to bloom when they are ready .
You, nor anyone, is going to produce this months "pic of the month in high times" with there first grows.
Concentrate on the basics of how to grow, be realistic. Those monsters that create the big yeilds, are grown by very experinced horticultureists, with advanced equipment, hybrid strains, expensive nutes and whathaveya, and the knowledge to use it all. They didn't get there first seeds and pull a 1/4 of a pound from them first time outa the gate.