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Petunia surfinia

General information on petunia surfinia

Surfinia is a variety of petunia, classifiable as a herbaceous plant and belonging to the Solanaceae family. It is native to South America, in particular to the Brazilian rainforest; in our continent it was introduced in two different species, the Petunia phoenicea and the Petunia nyctaginiflora: it is precisely from these two types of surfinia that the current species have been obtained, which are therefore nothing but hybrids. Its name in Brazilian means “tobacco”: in fact, the surfinia shares with the nicotiana the characteristic elongated shape of the leaves, as well as the color of a very dark green. The wonderful flowers of this variety of petunia are the main element of this decorative plant: they exist in different shades of color, ranging from white to pink to purple.


Contrary to what can be said for most indoor ornamental plants, surfinia is a sparsely rustic plant, which is why this variety of petunia in our latitudes is grown as an annual. The ideal exposure for surfinia is that in particularly sunny places, even those where it is not directly reached by the sun’s rays; on the contrary, it avoids the shade and cold air currents: for this reason it is advisable to shelter the plant during the winter. Unlike the rest of the plant, the flowers are particularly resistant to thunderstorms and, even if wet, once dried they regain their original shape. Surfinia tolerates high temperatures well, while it is damaged by lower ones. For vigorous growth,

Cultivation, fertilization and watering medium for surfinia


The surfinia proves to be an extremely easy plant to cultivate since it does not prefer any specific type of soil: despite this, it is recommended to use a particularly fertile substrate, absolutely not calacareous and well drained and enriched with sand or earthenware, in order to prevent the water stagnation that would damage the plant in its development. The ideal fertilizer is a liquid fertilizer to be diluted regularly in the watering, approximately every 10 days; the chemical composition of the fertilizer must prefer phosphorus, boron and iron, fundamental elements for an adequate development of surfinia. The latter needs a lot of water, so it is advisable to water every 2/3 days, while in periods of drought it must be watered daily.


The pruning of the surfinia must be carried out at the end of July, cutting it in half its length: this operation will not damage the plant in any way, as long as it is carried out with sterile tools; on the contrary, the pruning carried out in this way induces the formation of new stems and new inflorescences. Furthermore, it is advisable to eliminate all dry parts, which could carry numerous diseases and reduce the ornamental effect. The latter can be multiplied by sowing: this must be done at the end of the winter period; the seeds buried in a pot containing peat and sand, and subsequently covered with a plastic film; when the first shoots appear, the seedlings can be transferred to other pots and grown as if they were adults.

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