The genus Erica has many species of small shrubs flowering in winter and spring, and to these we should add calluna and daboecia, other ericaceous varieties with flowers very similar to those of heather, and therefore assimilated to it. Most heathers are small robust, evergreen shrubs, which are not sensitive to cold, so that you can grow them in the garden or on the terrace, or in the ground or in a pot. They prefer fairly fresh locations, so avoid placing them in extremely hot or exposed places. They like sunlight, even direct sun, but can also develop without any problem in semi-shaded or fully shaded areas. So, in areas with mild winters you should position them in a lightly shaded area, while in areas with freezing conditions in winter give preference to sunny areas. It is an acidophilic plant, which therefore reacts badly to calcium in the soil, and should be grown using a specific soil for acidophilic plants, mixed with a little sand and peat, and if you live in an area that has a high calcium content in the water remember to replace the soil often when you are growing heather: Every year, in late summer, take them out of the soil and add a fresh substrate for acidophilic plants. For the same reason, at least once a year you should add fertiliser to the irrigating water. Heather plants come from damp, cool areas, so throughout the year you should try to keep the growing medium moist, but not soaked with water or stagnant; you should water when the soil has dried out slightly, and without over-watering, either in terms of the frequency or the amount of watering. Every 15-20 days add fertilizer for flowering plants to the irrigating water.