Marguerites (_Chrysanthemums Frutescens_).--The White Paris Daisies
are very effective when placed against scarlet Geraniums or other
brightly-coloured flowers, and likewise make fine pot-plants. They
will grow in any light soil, and merely require the same treatment
as other half-hardy perennials. Height, 1 ft. (_See also_ "Anthemis"
_and_ "Buphthalmum.")
Margyricarpus Setosus (_Bristly Pearl Fruit_).--A charming little
evergreen, of procumbent growth, bearing throughout the whole summer
a number of berries on the main branches. Being only half-hardy, it
requires protection from frost, but in the warmer weather it may be
planted on rock-work in sandy loam and vegetable mould. Cuttings
planted in moist peat under a hand-glass will strike, or it may be
propagated by layers. Height, 6 in.
Marigolds.--Handsome and free-flowering half-hardy annuals. The
greenhouse varieties thrive in a mixture of loam and peat, and
cuttings root easily if planted in sand under glass. The African and
tall French varieties make a fine display when planted in shrubberies
or large beds, while the dwarf French kinds are very effective in the
foreground of taller plants, or in beds by themselves. They are raised
from seed sown in a slight heat in March, and planted out at the
end of May in any good soil. Height, 6 in. to 2 ft. (_See also_
"Calendula," "Tagetes," _and_ "Calthus.")
Martynia.--Handsome half-hardy, fragrant annuals. The seed should be
sown on a hotbed in March. When the plants are sufficiently advanced
transplant them singly into pots of light, rich earth, and keep them
in the stove or greenhouse, where they will flower in June. Height, 11/2
ft.
Marvel of Peru (_Mirabilis_).--Half-hardy perennials, which are very
handsome when in flower, and adorn equally the greenhouse or the open.
They may be increased by seed sown in light soil in July or August and
planted out in the border in spring. At the approach of frost take the
roots up and store them in dry ashes or sand. They flower in July.
Height, 2 ft.
Massonia.--Singular plants, which to grow to perfection should be
placed in a mixture of loam, peat, and sand. They require no water
while in a dormant state, and may be increased by seed or by off-sets
from the bulbs. Height, 3 in. to 6 in.