Nicknames: white clover, white clover, Dutch waist, and six in the snow.

Clover mainly includes three kinds: clover (the most authentic clover at present), oxalis, alfalfa and others.

White clover (also known as "white clover") is a short-term perennial herb of Leguminosae and White clover, with a growth period of 5 years. There are more than 300 species in the world. White clover is an excellent forage grass, which is rich in protein and minerals, cold and heat resistant, and can adapt to both acidic and alkaline soils. It is a promising species in this genus in China. It can be used as green manure, revetment grass seeds, lawn decoration, honey source and medicinal materials. The occasional special variant has four leaves, meaning "Lucky Grass". Red clover, white clover and miscellaneous clover are widely cultivated in China.

Clover seeds are small and should be carefully prepared before sowing. First of all, we should cultivate deeply and remove debris such as stumps, construction waste and grass roots. Lawn planting in the courtyard is often carried out after the construction is completed. Therefore, there are wastes such as cement, sand, mortar, bricks, tiles and decorative materials in the site, which must be removed and backfilled with garden soil. Secondly, soil treatment should be carried out to eliminate weeds. After deep ploughing and cleaning, most grass roots and vegetative propagules have been removed, but weed seeds and some vegetative bodies remain in the soil. When the conditions are suitable, weed seeds will germinate again, which is harmful to the lawn. Therefore, the lawn bed should be treated with soil. Weeds can be eliminated after watering if the construction period is not tight. If the construction period is tight, soil fumigation combined with soil disinfection can be used to treat weed seeds. Trifoliate seedlings grow slowly and are vulnerable to weeds, so soil treatment is very important. Third, shallow tillage should be carried out, and organic fertilizer or compound fertilizer should be applied in conjunction with shallow tillage. Fourthly, harrowing and grinding, fine soil preparation, make the flat bed smooth and create conditions for sowing.