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Physical description: Harewell speedwell has a low, prostrate growth.
It spreads indefinitely, and the flower stems can reach 8 in.
tall. The semievergreen dark green leaves are opposite, and reach
1 ½ in. in length. Flowering occurs in late spring to
early summer, and the flowers, which are bright blue to dark
blue, reach 1/3 in. across and are quite attractive
Optimal growing conditions: Harewell speedwell performs in full sun or partial
shade in well-drained soils. In good conditions, the rate of
growth is moderate to rapid. Winter hardiness: Zones 4-8.
Susceptibility to pests and diseases: Downy mildew and leaf spot are mentioned for
this species, but are not a serious problem. There are no serious
insect pests.
Use:
The prostrate habit is the most valuable attribute of this species,
and is very appreciated in borders or ground covers.
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