Lychnis.—Hardy perennials which, though rather straggling, deserve to be cultivated on account of the brilliancy of their flowers. L. Chalcedonica, commonly known as Ragged Robin, is perhaps the most showy variety; but L. Viscaria Plena, or Catchfly, is a very beautiful plant. They grow freely in light, rich, loamy soil, but need dividing frequently to prevent them dwindling away. The best season for this operation is early in spring. Beyond the care that is needed to prevent the double varieties reverting to a single state, they merely require the same treatment as other hardy perennials. They flower in June and July. Height, 2 ft. to 3 ft.
Lyre Flower.—See "Dielytra."
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, 1½ 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.