Houzz is the new way to design your home.
yuccas (Yucca flaccida 'Golden Sword' is shown here)
lower grasses are also welcome additions to the dry garden. With their fine foliage and tufted growth habit, they sway in the wind, contrast with thicker succulents and don't mind getting parched. Blue fescue (Festuca spp) and this Ponytail grass (Stipa tenuissima) are some of the best choices.
Ajania (Ajania pacifica, zones 5 to 9) always stops me in my tracks. This isn't my favorite photo of it, but trust me — this one's a stunner for sun. A relative of chrysanthemums (sometimes called pacific chrysanthemum), it makes a tight, mounded clump of the most silver leaves throughout the growing season, 1 to 2 feet tall and 1 to 3 feet wide
'Silver Shimmers' lungwort (Pulmonaria 'Silver Shimmers', zones 4 to 9). The neighbors may think you're decorating your garden with strips of aluminum foil. This plant thrives in woodland conditions, with moist, rich, well-drained soil in shade, and grows 1 to 2 feet tall and wide.
'Helene von Stein' lamb's ear (Stachys byzantina 'Helene von Stein', zones 4 to 9). I can't say enough good things about 'Helene.' From a couple of gallon pots, I've divided this plant enough to produce an army in my garden after only a few years. 'Helene' is a drought-resistant beauty, 6 inches tall and 1 to 2 feet wide, good for average, well-drained soil and sun. (It can take some shade too.)
Japanese painted fern (Athyrium niponicum var. pictum, zones 3 to 8). Though this fern is dazzling in silver, it emerges in spring a vivid deep purple — a bonus by any standard. Painted fern prefers average to moist, well-drained woodland soil, but it will take moderately dry shade just fine or a bit of sun if the soil is damp. This one grows 1 to 2 feet tall and wide