Evergreen plants are shrubs or trees with special foliage which remains on the plant during periods of dormancy. The evergreen shrubs most commonly grown in the garden are those used for hedges, which allow a green barrier that is constantly compact and luxuriant. Despite their persistent foliage, evergreen plants also have a dormant period, usually in the winter, during which you should stop fertilising and watering them. During the growing season, ie from March-April to September-October, you should water on a regular basis, but only when the soil is dry, and avoiding keeping the soil constantly soaked with water. In this way you avoid the development of harmful root rot. Fertilisation can be achieved by adding fertiliser to your irrigating water every 12-15 days, or by mixing the soil at the foot of the plants with slow release granular fertiliser every 4-6 months. Be sure to use a good fertiliser for green plants, rich with nitrogen during the spring, and with trace elements, which are useful to keep the foliage green and healthy. You should place evergreens in a good universal soil, mixed with a little sand or pumice stone to avoid water stagnation, choosing a place where the shrub can enjoy good ventilation and good light. We generally prune evergreens in late winter or after flowering if they are flowering shrubs. You can make small cuts to shape the bush during the growing season, or even in the autumn.