==Lavatera==.—­As the Mallows do not transplant well it is desirable to sow in the flowering positions.  Good ground is necessary to insure fine specimens, and ample space must be allowed for the plants to develop.  The seed may be sown from March to May.

==Lobelia==.—­The perennial varieties make splendid border plants, and are easily grown from seed.  Sow during February or March, in moderate heat, and in due time transfer to a deep rich loam.  Their dark metallic foliage and brilliant flowers are most conspicuous, and admirably fit them for the back row of a ribbon border, or for groups in the mixed border.

==Lupinus==.—­Seed of the annual varieties may be put in from March to May, and it is necessary to sow where required for flowering, as transplanting is not satisfactory.  The perennial Lupines may also be flowered as annuals by sowing seed in March or April.

==Marigold==.—­Both the African and French varieties are of importance late in the season, for they continue to bloom until cut down by frost.  The former reaches the height of from eighteen to thirty inches, and the colour is limited to yellow in several shades, from pale lemon to deep orange.  The latter is more varied in habit as well as in colour, and the Miniatures make excellent bedding plants.  In hot dry seasons Marigolds entirely eclipse Calceolarias, because they can well endure drought and a short supply of food; whereas the Shrubby Calceolaria does not thrive under such conditions.  All the varieties of Tagetes may be sown now on a moderate heat, and they should be pricked off into pans or boxes in readiness for transferring to the open ground in May.

==Marvel of Peru==.—­The treatment prescribed for Balsam will suit this plant.  In the first year it will grow to a considerable size, but will not, as a rule, attain to its full dimensions until the second season.  It is a half-hardy perennial, and when saved through the winter will need protection from frost.

==Mignonette== finds a welcome in every English garden; and to add to its attractiveness there are now yellow, red, and white varieties, in addition to such forms as dwarf, pyramidal, and spiral.  Mignonette can be grown without the least difficulty; indeed, it will reproduce itself from seed shed in the previous year.  Nevertheless, it is true that in the majority of gardens justice is seldom done to this flower, for the simple reason that there is not sufficient faith in its capabilities.  Each plant will cover a space of at least one foot, and we have seen specimens a yard across, bristling with flower-spikes which are delightfully fragrant.  The soil for it should be made firm, just as an Onion bed is treated.  Except for this one point, the culture of a hardy annual is all that is necessary.  Mignonette does not transplant successfully, but otherwise it is very accommodating.  The seedlings are frequently taken off by fly as fast as they appear above ground.  Soot and wood-ashes applied in good time are the best preventives; but a second sowing may be necessary, and it should be made immediately the loss is discovered.