The oleander is a typical plant of the Mediterranean regions, very common in Italy. It reaches a height and a diameter varying between 4 and 6 meters and is characterized by leathery and lanceolate leaves. The different varieties differ from each other above all for the color of the tubular flowers that appear between May and September: in fact, they range from crimson to red, from white to pink. There are also single-flowered varieties alongside double-flowered ones. Characterized by a fair resistance to low temperatures, this plant still needs special attention: if it is grown in a greenhouse, the minimum temperature must in any case be kept at around 5 degrees. The potted specimens can be kept outdoors from spring to autumn, but even once sheltered they must be placed in a well-ventilated and illuminated position. Furthermore, from May to September, adult plants should be given a diluted liquid fertilizer every 15 days. As for the outdoor planting, you will have to proceed in April, taking care, also in this case, to choose a sunny and sheltered corner. One last precaution: plants grown outdoors must be strengthened in a cold box before finally planting them in April of the following year.