Perennial, 2-3 feet. Propagate by taking soft cuttings
in spring and dibbling these in drills 1,5 inches deep,
if possible in showery weather. Be careful not to pinch
the cuttings tightly. Propagated in sunny weather the
plants are apt to fail. This Nepeta makes rapid growth
and the plants are frequently in ﬂower by September.
Plant out in autumn 2 feet apart. This Nepeta can also
be propagated by division of the roots, but this method
is not satisfactory. Does best in part shade and
succeeds in any soil.
Giant Catmint has towers of beautiful blue-mauve flowers in spring; Butterfly and bees are attracted to the masses of flowers.Attractive grey green foliage provides interest when flowering has finished. A terrific plant for growing under roses or informal border.