I think this is St John's Wort. It can become invasive in some areas.
"My work is loving the world. Here the sunflowers, there the hummingbird — equal seekers of sweetness. Here the clam deep in the speckled sand. Are my boots old? Is my coat torn? Am I no longer young, and still not half-perfect? Let me keep my mind on what matters, which is my work which is mostly standing still and learning to be astonished." — Mary Oliver, from Messenger
