- You Will Get 50 Seeds Of Silver Sage Salvia Argentea Artemis Flower Seeds. - Sunlight: Full Sun. - Watering: Light. - This is a very large salvia it is the Argentea Artemis often times called Silver Sage. - This thing gets big about 20” tall and spreads about 24” this is great in landscape. - This sage is a perennial hardy to -20f it will have very large silvery fuzzy leaves on it and it will bloom the second year with white to a pinkish flower on it.