It’s amazing to me how a smell can be so powerful it can bring back a memory that is decades old! It’s a scientific fact that the olfactory bulb is part of the brain’s limbic system, which is closely associated with memory. However, the scientific explanation doesn’t quite do the experience justice. Today, when I removed the dome from one of my seedling flats to water the seeds, the humid, earthy scent gripped my nose and brought me to my grandfather’s greenhouse when I was five years old. Follow me down memory lane!