This grower is sure of this plant identification.
loads of this lovely ground cover
Moneywort, Creeping Charlie, Wandering Jenny, String of sovereigns
Lysimachia nummularia (Moneywort). This is a prostrate perennial. It will creep along with a ground-hugging habit. The leaves are small and rounded, light green turning to yellow-green as they age. The flowers are bright yellow and will appear on top of the foliage in the summer.
They will prefer a slightly acidic soil with a good mix of organic matter and need full sun to partial-shade.
Walls, rock garden, bog, aquatic, ground cover, naturaliser, border, hanging baskets.