Puya venusta

The Puya venusta, locally nicknamed Chagualillo, is one of the most beautiful representatives of this group of perennial succulent plants, related to pineapples, but also one of the hardiest in dry soil. Its species name, venusta, which can be translated as "beautiful," is well deserved. It is a species of modest size, forming a compact rosette of spiny gray-blue leaves and producing after a few years an astonishing and very beautiful branched floral stem, pink-red in colour, with pinecone-shaped inflorescences adorned with flowers of a magnificent gentian blue with pink-red bracts. Puya venusta is a superb rock garden plant that appreciates very well-drained, rocky, but rather rich soils. It can be grown in pots in our cold and humid regions in winter.

The Puya venusta belongs to the bromeliad family. It is native to coastal areas of Chile, where drought can last 3 to 5 months. As spectacular as they are robust and undemanding, almost unheard of in Europe until now, these strange queens of the Andes are making their way among collectors of exotic plants who also know how to be patient, as it can take years for them to flower. It is a xerophytic plant, adapted to arid, wind-swept lands, and very dry climates in both winter and summer. This species can withstand freezes around -10°C (14°F) in dry soil (-6°C (21.2°F) without protection) and tolerates limestone.

This puya shows slow growth, forming compact and dense rosettes of leaves that can reach a height and spread of 35-40 cm (14-16in). The plant spreads over time to form large clumps composed of multiple rosettes. The leaves are thick, thin, long, pointed, leathery, green-gray-blue in color, and edged with small inward-curved spines. Mature rosettes, aged 6 to 7 years, flower in spring, from April to June depending on cultivation conditions. From their center emerges a velvety pink-red floral stem that can rise to 1 m (3ft) above the ground. At its tip and on several branches, it bears oval-shaped inflorescences packed with numerous tubular flowers in iridescent blue-violet colour with yellow stamens, enclosed in pink-red calyxes. These flowers are well adapted to the fine beak of nectar-feeding birds in their native Chile, who come to drink nectar while ensuring their pollination. Flowering marks the death of the rosette, but the plant ensures its perpetuation by producing daughter rosettes near its base.

In a mild climate garden, Puya venusta finds its place among Agaves, Dasylirions, Nolinas, and other Aloes, in a well-drained soil exposed to the south. Do not place this spiny plant near a pathway and keep it away from young children. It can be easily grown in a container with a cactus-type substrate. As soon as the first cold weather arrives, you should protect it from humidity and cold, handling it with caution due to its spines, in a temperate greenhouse or an unheated conservatory.

Puya is called the "sheep-eating plant" by English speakers. Indeed, its spiny vegetation allows it to defend itself against herbivores' teeth in the arid heathlands where few plants can survive. Imagine a sheep with its wool getting too close to the puya; it would risk becoming trapped until its death, serving as food for the plant.