This section is from the book "A Dictionary Of Modern Gardening", by George William Johnson, David Landreth. Also available from Amazon: The Winter Harvest Handbook: Year Round Vegetable Production Using Deep Organic Techniques and Unheated Greenhouses.
Lachnanthes tinctoria. Greenhouse herbaceous. Seed and division. Sandy peat.
See Clisiocampa.
Lettuce. Seven species, and many varieties. Hardy annuals. Seed. Common rich soil. See Lettuce.
Aspidium thelyp-terum.
Neottia spiralis and spiranthes.
Sixteen species. Stove epiphytes. Offsets. Peat and potsherds. Mr. Beaton gives the following directions for the treatment of L. super-biens, and they are applicable to the rest of the genus: -
" In April, place it in the warmest end of the green-house, and there let it remain till all its shoots are three parts grown, about the end of June; then place it in the stove, and let it have as much air as possible, watch its buds narrowly, and leave it in the stove till they are in a forward plump state, then remove it to a cooler place, and allow it to go gently to rest as the season declines. If all has gone on well with it, the flower spikes will make their appearance as soon as it is at complete rest in November: at this time the same heat given to the camellia suits it best, so that it may safely be taken to the drawing room for the winter, and having previously finished its growth, little or no water need be given it while in the drawing room." - Gard. Chron.
Laetia thamnia. Stove evergreen shrub. Cuttings. Rich loam and peat.
Lagasca mollis. Stove annual. Seed. Common soil.
Lagenaria vulgaris. See Gourd.
Lagetta lintearia. Stove evergreen shrub. Ripe cuttings. Loam and peat.
Lagonychium stephanianum. Half-hardy evergreen shrub. Seed, cuttings, and layers. Common soil.
Ten species. L. alsini-folia and L. minuartoides are hardy ; L. diffusa, a green-house, annual trader ; the others green-house and stove evergreen shrubs, except L. polycanpoides, which is herbaceous. These are increased by cuttings. Sandy peat.
Lalage ornata. Green-house evergreen shrub. Young cuttings. Sand, loam, and peat.
Eight species. Green-house evergreen shrubs. Cuttings. Sandy loam and peat.
Lamium orvala. Hardy herbaceous. Seed and division. Common soil. Some varieties of L. longifolium and L. rugo-sum are also cultivated in gardens.
Phlomis lychnitis.
See Draining.
Raphanus landra.
Twenty-nine species. Stove evergreen shrubs. Cuttings. Sandy loam.
Larch. Two species, and many varieties. Hardy coniferae. Seed. Light soil on a dry sub-soil. See Coniferoe.
Two species. Greenhouse evergreen shrubs. Cuttings. Loam, peat, and sand.
Thapsia laserpetii.
Three species. Stove evergreen shrubs. Cuttings. Loam, peat and sand.
Two species. Green-house evergreen shrubs. Ripe cuttings. Loam and peat.
Five species. Hardy evergreen trailers. Cuttings. Sandy loam.
 
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