yellow blooming aurinia saxatile (alyssum saxatile) flowers on old stone wall of thun castle, switzerland

aurinia alyssum wall stones blooming flowers yellow castle thun switzerland springtime blossom nature saxatile gold ornamental group saxatilis wildflower growing golden granite structure flourish commonwealth drywall greenery growth happy pretty grungy weathered weed spring cracks awesome fine lovely fancy enduring hardy strong patient shrub rock botanic seasonal