Grow in moist friable soil in half-shade, plantingin spring and cut back on old plants in September. It wants keeping under by hoeing off surplus underground , or planting in a bottomless pail. Mentha rotundifolia is the best flavoured mint. To control mint rust lift the roots, wash clean of soil and place in water at a temperature of 1 io° F for 10 minutes. Replant in a fresh place. Mentha requienii or Corsican mint is an attractive carpeting plant with soft green and minute lavender in summer. It can be grown in crevices of paved paths. Height about 2 in. Prefers a moist and sometimes fails to survive the winter. A strong peppermint aroma is apparent immediately one treads on this plant. Very easily increased by detaching pieces of the plant in late summer.