We all insist on buying insect hotels stuffed with fat bamboo canes, when mason bees only ever move into this one size
Most store-bought insect hotels are packed with oversized bamboo canes that mason bees actively avoid. The secret? Mason bees are surprisingly picky about their homes, preferring snug 8mm tunnels with specific depths—and when given a choice, they’ll reject the fancy hotel for the right-sized hole every time.