Will this happen if I do this to my plants?

I just planted a perennial garden about 2 weeks ago. I feed them Miracle Grow every Sunday.
If I continusouly cut the flowers off will the plant grow faster? I am more interested in getting the garden bigger first before enjoying the flowers.
Wont the plant put its energy into growing bigger faster if you take the flowers off before they bloom?

Will this happen if I do this to my plants?