botanical collection, leaves and berries of silver mound artemisia absinthum medicinal plant

absinthium accent arborescens artemisia asteraceae beach beautiful botanical botany collection color contrast cottage cover creeping cultivar ecology edging evergreen family flora flower foliage garden gardening ground growth herbaceous horticultural horticulture leaf leaves macro mound nature nursery ornamental outdoor outdoors perennial plant schmidtiana selection silver silvermound summer sunflower textural wormwood