A Rock Garden Perennial Sampler

lewisiasunsetstrain (300x292)Lewisia cotyledon ‘Sunset Strain’ – An evergreen perennial with rosettes of fleshy leaves, it requires perfect drainage (many plant it on an angle to drain the crown) to survive wet coastal BC winters. It bears a range (yellow, pink, salmon, peach) of starry flowers from late spring into early summer. RHS Award of Garden Merit winner. Grows 6″ high by 8-12″ wide. Hardy to zone 4.

dianthussliverstar (300x297)Dianthus ‘Silver Star’ (syn. ‘WP10 HEL01’) – A Border Pink with fine evergreen bluish-grey foliage that forms a mound. It bears semi-double fringed white flowers with a burgundy eye and a spicy clove fragrance from late spring into summer (with deadheading). ‘Silver Star’ works well in containers. Flower petals are edible. Grows 6-8″ high by 8-12″ wide. Hardy to zone 5.

geraniumorkney (300x298)Geranium ‘Orkney Cherry’ – A Hardy Geranium or Cranesbill with unique bronze-green foliage that nicely sets off the flowers. It produces starry bright pink blooms (with darker veining and a white eye) from late spring right through the summer. This Scottish selection prefers a part to full sun exposure with good drainage. Grows 6-12″ high by 1-2′ wide. Hardy to zone 5.

gysophilacerastoides (299x300)Gypsophila cerastioides – Alpine Baby’s Breath forms a low mound that is more suited to a rock garden than a mixed border situation. The small white (tinged lavender) flowers have pink veins and are borne from late spring into early summer – these are nicely contrasted by the dense mound of dark green leaves. Grows 4″ high by 8 to 12″ wide. Hardy to zone 4.

sempervivummonalisa (295x300)Sempervivum arachnoideum ‘Mona Lisa’ – One of the cobweb Hens & Chicks with fleshy burgundy-red leaves often tipped in apple green and accented with fine white webbing. It was bred by Andre Smits of Belgium in 1989 and produces pink blooms on 6″ high stalks in July. Prefers a full sun exposure and a gritty, well drained soil. Grows 4″ high by 6-12″ wide. Hardy to zone 3.

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