mixed planted alpine rockery and waterfall in a country garden

rheum palmatum chinese perennial perennials herbaceous dactylorhiza orchid iris laevigata variegata rhizome aurea grass bowlesa golden deciduous libertia rhizomes ferns asplenium scolopendrium hartas tongue fern native rhododendron dwarf ericaceous acid acer dissectum japanese maple tree color colours red yellow blue purple mauve white pink sedum spathulifolium rhodohypoxis rock garden alpines natural planting water flowers stripe stripes variegated foliage leaves grey flower fleur fleurs waterfall aquatic pool rockery sun shade gray gravel rocks geum gardens show vertical colourful mixed planted country