The petunia is a small annual plant, generally cultivated in pots, in the garden, or typically in pots on the terrace. There are different species, with hybrids and cultivars; these are plants originating from South America. In the pots the dwarf, or hanging, varieties are preferably cultivated, such as the petunia surfinia, now commonly called surfinia, often grown in hanging baskets. They are grown in a sunny place, or semi-shaded, so that they enjoy at least a few hours of direct sunlight, to favor flowering; from May until the autumn colds, in fact, they are covered with many trombone flowers, div air measure, and of various color; the typical color of petunia is fuchsia or blue, but we find it in all shades of pink, purple, and also in yellow, green, striped or spotted shades. They prefer soft and fresh soils, quite rich, certainly very well drained, where there is no danger of water stagnation; avoid placing them in excessively small containers, so as to be able to supply a good quantity of water; in fact with the summer heat these plants need regular watering, abundant, and quite close. Throughout the vegetative season we add to the water of the fertilizer for flowering plants, every 12-15 days. Periodically we remove the withered flowers, and the foliage or branches that should be broken by the weather or the wind. We check that they are not attacked by aphids, which often nest among the leaves.