How long will a grass lawn take to be full green and dense?

I have a KBG grass but it's not that dense yet and deep green. How long does it take for a lawn to be at it's full beauty. Does it take two years, months to see some improvement? I'm planning to aerate, fertilize every season, weed control and insect control once a year. I just can't wait I want a... show more I have a KBG grass but it's not that dense yet and deep green. How long does it take for a lawn to be at it's full beauty. Does it take two years, months to see some improvement? I'm planning to aerate, fertilize every season, weed control and insect control once a year. I just can't wait I want a walk barefoot on a carpeted thick, dense deep-blue lawn.
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