Salvia candidissima

The Salvia candidissima, or woolly white sage, is a botanical species appreciated for its ornamental foliage and generous white flowering. It is a bright sage, ideal in a white scene. Perfect in a rockery or a massif in a dry garden and very useful for bees, this sage is best suited to climates that are not too harsh and very well-drained soils, dry in summer and winter. In colder regions, it can be grown in a pot, which allows it to be stored away from excessive moisture and severe frost in winter.

Salvia candidissima is native to western Greece, certain regions of Turkey, Iraq, and Iran, where it is usually found between 600 and 1900 m altitude. This sage is part of a group of seven Salvias that grow in the same habitat, readily hybridise, and are closely related, resulting in some natural variability. It occupies hot and dry regions in summer. However, its cold resistance is quite limited: the stump dies below -8 °C or even from -5 °C if the soil is moist. Like all other sages, it belongs to the large family of Lamiaceae or labiates.

Salvia candidissima is a woody-based perennial plant. It forms a generally rounded clump that can reach 60 cm in height when flowering, with a 50-60 cm spread. Under certain conditions, the plant can go over 1 m in height. Its foliage persists in winter if the frost does not exceed -5 °C at its peak. The leaves are tough, hairy leaves ranging from pale green in spring to green-grey and silver-grey in summer. They are triangular with a crenate edge. These leaves, which contain essential oils, are aromatic when crushed. They are covered in hairs that give the vegetation its silvery appearance, especially in summer. Flowering begins in May and continues until July if faded flower stalks are regularly removed. Numerous floral stalks emerge from the foliage, bearing small flowers arranged in whorls, forming crowns around the stem. Their shape resembles a tiny parrot's beak, with an upright white lip overhanging a small cream-yellow lip in the shape of a labelle. Melliferous and nectariferous, they are highly prized by bees.

The Salvia candidissima thrives in full sun on dry slopes, rockeries or massifs on gravel in consistently well-drained soil. It is a plant that can tolerate Spartan growing conditions but fears heavy soils and damp cold. For example, it can be paired with large lavenders, rockroses, thymes, oregano, cotton lavenders, or even Erigeron karvinskianus. When grown in pots, use large containers with a very well-draining growing medium and water sparingly.

With over 900 species of annuals, perennials, and shrubs distributed worldwide, except in very cold regions and tropical forests, the genus Salvia is the most diverse in the Lamiaceae family. The name Salvia, dating back to Roman times, derives from the Latin salvus, "healthy", which refers to the medicinal properties of common sage.