<human>:  Are looks the easiest way to tell rosemary from lavender? 
<bot>: No, looks are not the easiest way to tell rosemary from lavender. Before blooming, lavender and rosemary look remarkably similar. Rosemary has a pine-like scent. Lavender has a lighter, more floral scent. So smell is the easiest way to tell rosemary from lavender.