Physocarpus opulifolius 39darts gold39 produces clumps of dainty white flowers in early summer each with a subtle pink hue the vivid yellow foliage gradually matures to green adding a splash of colour to your garden ninebark is happy in nearly any garden position as this small hardy shrub will even thrive in partial shade physocarpus opulifolius 39darts gold39 is the perfect choice for your beds and borders and can even be planted in small groups to be used as a screening plant