This section is from the book "The Wild Garden", by W. Robinson. Also available from Amazon: William Robinson: The Wild Gardener.
Trailing plants, with glossy foliage and handsome blue flowers, well known in gardens. They are admirable plants for naturalisation, growing in any position, shady or sunny.
A tall Mullein.
There are variously-coloured and very pretty varieties of V. minor, while the variegated forms of both species are handsome, and may be naturalised like the green kinds.
 
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