Sigmetum is a Portugal-based producer of native plant species, focused on preserving the country’s genetic heritage and biodiversity. Its work supports sustainable gardens and landscape integration by making plants adapted to local conditions available for cultivation. The species presented include coastal, dune, shrubland and other native plants, such as Ammophila arenaria, Calluna vulgaris, Santolina rosmarinifolia and Juniperus turbinata.

The brand offers seed collection, with seeds gathered from nature and their provenance guaranteed. It also provides expertise in sowing and germination, including the treatment of native seeds to improve germination success and methods for propagating species that are difficult to grow from seed. Sigmetum highlights the value of understanding local landscapes, whose rich natural diversity can inspire sustainable garden design. Through its plant production and related services, the company connects native flora with practical landscaping needs while contributing to biodiversity conservation. Sigmetum is located in Poceirão, in the Marateca area of Portugal, and provides general and commercial contact channels for enquiries.