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Festuca glauca Intense Blue
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Festuca glauca ‘Intense Blue’

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Plant information

  • Height: 30cm-40cm
  • Spread: 20cm-30cm
  • Soil: Can tolerate moderately poor soils, but avoid heavy clay that holds water
  • Position: Full Sun, Part Shade
  • Flowering Period: Summer to Autumn
  • Hardiness: Frost Hardy to -12°C (H5)

Plant Description

Festuca glauca ‘Intense Blue’ forms rounded mounds of narrow, spiky, intensely silvery-blue leaves. This low-maintenance grass variety presents a striking appearance, particularly well-suited for gravel gardens or those with a Mediterranean-style theme. Additionally, in the summer, it produces bluish-green flowerspikes that mature to a straw-like colour, adding an extra dimension of interest to its overall aesthetic.

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🌿 How to Care for Festuca glauca ‘Intense Blue’

How much sun do Festuca glauca ‘Intense Blue’ need?
Festuca glauca ‘Intense Blue’ thrive in full sun (6–8 hours daily). Some varieties can tolerate partial shade, but flowering may be reduced.
Festuca glauca ‘Intense Blue’ prefer well-drained soil, ideally light and moderately fertile. Heavy, waterlogged soil should be avoided to prevent root issues.
The best time to plant Festuca glauca ‘Intense Blue’ is spring or early autumn. Space them according to their mature size, plant at the same depth as their containers, firm in, and water well.
Water Festuca glauca ‘Intense Blue’ regularly during their first growing season. Once established, most grasses are drought-tolerant and only need water during prolonged dry periods.
Festuca glauca ‘Intense Blue’ don’t need much feeding. In poor soils, a light compost mulch or a slow-release fertiliser in early spring is sufficient. Too much feeding can make them floppy.
Festuca glauca ‘Intense Blue’ should be left standing over winter to protect the crown and add structure. In late spring, once new growth appears, cut back dead foliage to just above the fresh shoots.
Divide Festuca glauca ‘Intense Blue’ into clumps every 2–4 years to keep them healthy. The best time is early spring before new growth or late summer for warm-season types.
Festuca glauca ‘Intense Blue’ are usually low-maintenance and pest-resistant. In overly wet or crowded conditions, issues like mildew, rust, or aphids may occasionally appear.

Common reasons include too much shade, overfeeding, or lack of division. Move to a sunnier spot, divide overgrown clumps, and avoid high-nitrogen fertiliser.

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