Petalosa

Petalosa is a modern Capsicum annuum cultivar discovered by Massimo Stomeo in Italy and circulated for its unusual double-flowered to multi-petalled floral trait. It is sold as a named pepper line, and growers repeatedly refer to the original plant as the source of the Petalosa double-flower character that has since been carried into many later hobby crosses.

The defining feature of Petalosa is its flower structure. Public breeder and grower descriptions consistently describe it as a pepper with doubled petals, extra petal layers, or even triple-corolla flowers, making it one of the more visually unusual ornamental Capsicum lines in current circulation. The plant is also described as compact, with the original Petalosa noted for an extremely compact habit resembling a small hedge, and later growers also describe it as a compact plant with clustered growth.

In distribution, Petalosa moved from the original Italian selection into wider grower circulation by 2023, with growers recording that seeds of the double-petal line were already being sold in June 2023. By 2024 and 2025 it had become established enough in collector circles that dedicated grower groups and multiple Petalosa-derived breeding projects were already active, especially among ornamental and mutant pepper enthusiasts.

A major factual conflict around Petalosa is that some growers use the name for the original cultivar itself, while others use it more broadly for the inherited double-flower trait in its descendants and crosses. Its core identity, though, stays the same across those uses: a compact annuum line selected for the rare multi-petalled flower mutation that made it valuable as an ornamental breeding parent. Grower notes also describe it as somewhat slow to germinate and dainty at the seedling stage.