| Generally speaking, the genus Oxalis is not highly esteemed by the florists. However, several species and varieties are used in masses for floral displays in botanical collections. The noteworthy species occasionally seen are O. Bowiei, O. lasiandra and its varieties alba, caerulescens and lilacina, O. variabilis and its varieties alba and rubra, O. Simsii, and O. rosea. When used for display during February or March, the bulbs or tubers should be cleaned and divided into convenient sizes during August or September. Excellent results may be accomplished by potting three bulbs, forming a triangle in each 4-inch spot, placing them just below the surface of the soil. The soil ingredients should consist of loam, leaf-soil and sand, in proportion to give a good porous medium. As root" action and growth increase, repot into 5- or 6-inch pots, which will carry them throughout the flowering period. Occasionally the crowns have a tendency to rise above the level of the soil; these may be lowered during repotting. When the plants are well rooted, periodical watering with organic fertilizer will help the development of good substantial flowers. During growth place the plants on the side stages near the glass in a temperature of 60° F. After the flowering period gradually reduce the water-supply and finally place in a cool cellar for the resting-period or under the greenhouse bench, laying the pots side down. Specimen clumps are an acquisition planted below the benches in the floral display house; under these conditions they will practically naturalize themselves. Plants are also conveniently grown as common house plants, either in hanging-baskets or as pot-plants for the window during the summer months. When dormant they are easily stored in the cellar. A disappointing feature is the partial closing of the flowers during dull weather. | | Generally speaking, the genus Oxalis is not highly esteemed by the florists. However, several species and varieties are used in masses for floral displays in botanical collections. The noteworthy species occasionally seen are O. Bowiei, O. lasiandra and its varieties alba, caerulescens and lilacina, O. variabilis and its varieties alba and rubra, O. Simsii, and O. rosea. When used for display during February or March, the bulbs or tubers should be cleaned and divided into convenient sizes during August or September. Excellent results may be accomplished by potting three bulbs, forming a triangle in each 4-inch spot, placing them just below the surface of the soil. The soil ingredients should consist of loam, leaf-soil and sand, in proportion to give a good porous medium. As root" action and growth increase, repot into 5- or 6-inch pots, which will carry them throughout the flowering period. Occasionally the crowns have a tendency to rise above the level of the soil; these may be lowered during repotting. When the plants are well rooted, periodical watering with organic fertilizer will help the development of good substantial flowers. During growth place the plants on the side stages near the glass in a temperature of 60° F. After the flowering period gradually reduce the water-supply and finally place in a cool cellar for the resting-period or under the greenhouse bench, laying the pots side down. Specimen clumps are an acquisition planted below the benches in the floral display house; under these conditions they will practically naturalize themselves. Plants are also conveniently grown as common house plants, either in hanging-baskets or as pot-plants for the window during the summer months. When dormant they are easily stored in the cellar. A disappointing feature is the partial closing of the flowers during dull weather. |
| + | O. japonica, Franch. & Sav. Lfts. broadly triangular, scarcely notched, and truncate. Otherwise similar to O. Acetosella. Japan. —O. violacea. Linn. Lvs. rather fleshy, glabrous: fls. in simple umbels, rose-violet. E. U. S. B.M. 2215. Mn. 5:121.—Scarcely useful, except for hardy borders or rockeries. |