A green lawn is a beautiful thing, but as you likely already know by now, it takes way more work than you expect to keep it green! Photos Via: Style Blueprint Even if you are watering 1.5 inches every week (in the mornings, so your lawn doesn’t become a mildewed swamp), mowing to the exact height of 2.5 inches (with razor-sharp mowing blades, you might add) and sprinkling nitrogen-rich fertilizer every fall, you still probably aren’t doing enough to guarantee a healthy lawn. That’s because you aren’t aerating, or ensuring…