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Physical description: This deeply rooting, horizontally growing perennial
plant has a prostrate habit and reaches 6 in. tall and spreads
8 in. wide. The semi-evergreen leaves are fleshy, opposite, entire,
lance-shaped, and colored gray-green. They reach ¾ in.
long and are slightly hairy. Flowering occurs in summer, and
double white flowers 1 in. across are produced densely on branchy
stems. They are solitary, or borne in few-flowered clusters.
Optimal growing conditions: This species does well in well-drained, moderately
fertile, neutral to lightly alkaline soils. It prefers full sun
but light shade is acceptable. Winter hardiness: Zones 3-7.
Susceptibility to pests and diseases: Pests such as slugs, snails, whiteflies, spider
mites, and aphids are sometimes problematic. Concerning diseases,
rust, smut, and leaf fungi are common.
Use:
Attractive for its flowers, this species is suitable in front
of borders, in rock gardens, or as a groundcover species.
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