April is a time of abundant growth in the Stream Garden, encouraged by ample water and high light levels before the canopy fills out. After a glorious display of daffodils, blue drifts of Camassia bridge the gap between early spring bulbs and the intensity of summer. The lush, young fronds of the shuttlecock fern, Matteuccia struthiopteris, flank the stream, as the bronze foliage of Rodgersia unfurls, making a beautiful colour combination. Further down stream, the other-worldly enormous leaves and flower spikes of Gunnera manicata emerge at the water’s edge.