This grower is sure of this plant identification.
Yellow loosestrife, Circle flower, Dotted loosestrife, Loosestrife
Lysimachia punctata (Yellow loosestrife). This is a moisture-loving perennial and can become invasive over a period of time. It needs plenty of room to grow, and will provide you with lush foliage and bright yellow flowers. It grows well in moist soil, or a partial shaded position.
They will prefer a slightly acidic soil with a good mix of organic matter, they need full sun or partial-shade.
Walls, rock garden, ground cover, bog, wildflower/meadow