Planting Too Close Together
Overcrowding zucchini might seem efficient, but it stifles airflow and leads to mildew or rot. I learned this the hard way when my once-bustling patch turned into a soggy maze of tangled vines, with powdery mildew racing across every leaf!
Space standard zucchini at least 24–36 inches apart and bush varieties 18–24 inches apart. This gives each plant room for sprawling leaves, encourages pollinator access, and reduces humidity around the vines—key to healthy growth and robust fruit production.