The method of preventing cold and overwintering for flowers

Covering method: cover the border with hay, fallen leaves, horse dung or straw mats before the frost comes, and then clean the border after the late frost. Soil cultivation method: cultivate the soil of flowers in time, and rake the soil after the arrival of spring (before flowers germinate). Fumigation method: the use of smoking to prevent frost, smoking, smoke and water vapor constitute a thick smoke, can reduce the loss of soil heat, generally when the temperature drops close to 0 ℃, you can start smoking.