Gray leaved plants like Santolina, lavender and Artemesia contrast beautifully with bright blue delphiniums and purple and white hardy geraniums.
Santolina - cotton lavender, with delicate silver foliage, aromatic and has yellow daisy-like flowers.
Lavender Cotton (Santolina) - Dwarf, half-shrubby plants, of neat habit and pretty hoary foliage.
Other species of Santolina suited for rock gardens are S. pectinata and S. viridis, which form bushes something like the Lavender Cotton.
The word usage examples above have been gathered from various sources to reflect current and historial usage. They do not represent the opinions of YourDictionary.com.