Lysimachia Clethroides.--This hardy perennial has something of the
appearance of a tall Speedwell. When in flower it is attractive, and
as it blooms from July on to September it is worth a place in the
border. A deep, rich loam is most suitable for its growth, and a
sheltered position is of advantage. The roots may be divided either in
November or early in spring. Height, 3 ft.
Lysimachia Nummularia (_Creeping Jenny_).--This plant is extremely
hardy, and is eminently suitable either for rock-work or pots. It is
of the easiest cultivation, and when once established requires merely
to be kept in check. Every little piece of the creeping root will, if
taken off, make a fresh plant.
Lythrum.--Very handsome hardy perennials which thrive in any garden
soil, and may be raised from seed or increased by dividing the roots.
They flower in July. Height, of different varieties, 6 in. to 4 ft.
M
Madia.--A hardy annual of a rather handsome order. The seed should be
sown in May in a shady situation. The plant is not particular as to
soil, and will flower about eight weeks after it is sown, and continue
to bloom during August and September. Height, 11/2 ft.
Magnolia Grandiflora.--A handsome, hardy evergreen, with large
shining, Laurel-shaped leaves, and highly-scented, Tulip-shaped white
flowers. A noble plant for a spacious frontage, but in most places
requires to be grown on a wall. It flourishes in any damp soil, and is
increased by layers. Flowers in August. Height, 20 ft.
Mahonia.--Handsome evergreen shrubs, useful for covert planting or for
grouping with others. They grow best in a compost of sand, peat, and
loam, and may be propagated by cuttings or by layers of ripened wood,
laid down in autumn. They flower in April. Height, 4 ft. to 6 ft.
Maianthemum Bifolium.--The flowers of this hardy perennial are
produced in April and May, and somewhat resemble miniature Lily of the
Valley. Seed may be sown at the end of July. The plant will grow in
any soil, but delights in partial shade. Height, 6 in.