10 Grey Plants for San Francisco Herbaceous Borders

How can I bring supportive light into my borders, containers and vignettes? Bright white, silver and grey foliage will support any color scheme by reflexing the ambient color of your vignette back to your eye. So what are some good plants for San Francisco?

1) Centaurea gymnocarpa 'Velvet Centaurea' - shrub, with Ricinus communis 'New Zealand Purple'
2) Ballota pseudodictamnus (False Dittany)
3) Onopordum acanthium - Need a character, a real prima donna. Likes to reseed.
4) Stachys byzantina - ground cove
5) Verbascum bombyciferum 'Arctic Summer' - specimen reseeder
6) Artemisia - shrub
7) Dudleya - Succulent for rock wall
8) Cerastium tomentosum - ground cove
9) Dymondia margaretae - tight low ground cover
10) Lychnis white flowered variety- annual (Playing a true supporting role to the Wisteria, Rosa and Iris. Mid-lower right.)