Anise Hyssop Black Adder, red & yellow barberry: Spanish Lavender blooms for a longer time than most lavenders do and it has lovely silvery foliage that will play well with these other shrubs when the flowers are finished.
This acid-green, fluffy-flowered plant, Alchemilla mollis is one of the best ever foliage plants for the garden & vase. A tough plant, it will self-seed amongst others and cope with almost any type of soil as long as there's some sun.
Geranium macrorrhizum 'Spessart': A medium growing form with white flowers with pink calyx. Very tolerant of dry soils and conditions. One of the most evergreen of the forms. Offers autumn brightness as the leaves colour.