Blue fescue 'Intense Blue' (Festuca glauca) - grass with blue-tinted foliage - 17 cm pot - Height 50 cm

Yes, the Intense Blue fescue (Festuca glauca) is ideal for dry, stony gardens and even rock gardens. Its drought tolerance is one of its major qualities: once established, it draws from the deeper layers of the soil and requires only occasional watering in summer. It thrives in poor, sandy, or gravelly soils, provided that drainage is excellent. It is precisely in these difficult conditions that it displays its characteristic steel-blue color most intensely. It is therefore ideal for Mediterranean gardens, gravel paths, or slopes that need to be planted without irrigation.

Intense Blue fescue forms a compact, dense clump that generally reaches a foliage height of 30 to 40 cm at maturity, with flower spikes that can exceed 50 cm in summer. Its growth is described as fast, meaning that'it takes possession of its space from the first or second planting season. It does not become invasive for all that: the clump remains well defined and does not spread by stolons. A spacing of 25 to 30 cm between plants is sufficient for each plant to develop harmoniously.

Intense Blue fescue is a fully hardy grass that withstands sub-zero temperatures in the ground without any special protection. Its foliage is semi-evergreen: it may fade or partially yellow during harsh winters, but vigorously regrows as soon as temperatures rise in late w'inter. The clump remains in place year after year and does not need to be brought indoors for winter, unlike certain so-called "tender" grasses.

Intense Blue fescue is an excellent plant for creating clean, graphic borders along paths, patios, or flowerbeds. Its full, uniform habit makes it a structuring element that 'can be planted repeatedly to create a strong visual rhythm. In a mass planting, pair it with perennials featuring warm-colored flowers in bright orange or yellow, such as daylilies or coneflowers, for a striking contrast with its steel-blue foliage.

Intense Blue fescue grows very well in a pot or planter, provided you choose a container at 'least 20 to 25 cm in diameter to provide enough room for the roots. Use a well-draining growing medium, ideally a mix of multipurpose compost and gravel or pumice to prevent 'excess 'moisture at the bottom. In a pot, 'watering should be more regular than 'when planted in the ground, especially in summer, as the growing medium dries out more quickly. Place the pot in full sun on a south- or 'west-facing terrace or balcony so that the foliage retains its beautiful blue colour.

The best time to prune the Intense Blue fescue is ideally in late 'winter, between February and early March, before the spring growth spurt. At this time, cut the clump back to two-thirds of its height us'ing grass scissors, a 'sickle, or even by gathering the leaves into a bunch and cutting 'in a single motion. This operation removes dead or cold-damaged leaves and stimulates the production of new stems of 'a more intense blue. Avoid pruning in autumn, as this would expose the heart of the plant to winter frosts.

Yes, Intense Blue fescue contributes positively to garden biodiversity, even though it is primarily valued for its ornamental appeal. Its summer flower spikes produce seeds that are enjoyed by certain seed-eating birds, such as goldfinches. The density of its clump also provides a microhabitat and winter shelter for beneficial insects, ground beetles and spiders in particular, which find refuge among the dry leaves.