agined for a rockery is
=lithospermum prostratum=, and yet how rarely one sees it; the glossy
green leaves always look cheerful, and the flowers are exquisite, they
are a bright full blue, and each petal is slightly veined with red, it is
not difficult to grow, a dry, sunny position being all it requires; it is
of trailing habit and an ever-green. Everyone knows =the creeping jenny=,
but it is not to be despised for rock-work, especially for filling up odd
corners where other things will not thrive. It blooms best where there is
a certain amount of sun.

=St. Dabeoc's Heath= is a pretty little shrub, very neat and of good
habit; its flowers are the true pink, shading off to white, and of the
well-known heath shape. Somewhat slow-growing, it prefers peat.

=Plants that flower the whole season through= are most valuable on the
rockery. =OEnotheras= may be depended on to present a pleasing appearance
for several weeks, especially if all dead flowers are picked off. The
dwarf kinds are the most suitable, such as _Oenothera marginata_,
_missouriensis_, _linearis_, and _taraxacifolia_. The last-named, however,
is only a biennial, but has the advantage of =opening in the morning=,
while most of the evening primroses do not seem to think it worth while to
make themselves attractive till calling-hours.

=The most fairy-like little plant= for filling up narrow crevices in sunny
quarters is the dear old =wood-sorrel=. It has tiny leaves like a shamrock
in shape, but of a warm red-brown colour, and the sweetest little yellow
flowers imaginable; they are borne on very short stalks, and only come out
when the sunshine encourages them; the whole plant does not exceed three
inches in height; it spreads rapidly, seeds freely, and thrives best in a
very light soil; it will also do well on walls.

The =alpine poppies= are so delicate and graceful that they seem made for
the rockery. They only grow six inches high, and continue in flower at
least four months; they may be had in a great range of colours, and are
easily brought up from seed. Nice bushy plants can be had of these
poppies for about four shillings a dozen, and it is needless to say they
require plenty of sunshine. The word _phlox_ conveys to many people the
idea of a tall autumn-flowering plant, with large umbels of flowers,
individually about the size of a shilling. But these are not the only
species; the alpine varieties are just as beautiful in a different way,
though som