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Boulder Blue Fescue

Boulder Blue Fescue

FESTUCA glauca 'Boulder Blue'

Customers rate us 4.5/5 based on 105 reviews.
  • Full Sun (6+ hrs) and Partial Sun / Shade (3-6 hrs)
  • High drought resistance
  • Ships as a 4"plant
  • Mature spread is 6"-12"
  • Round, Mounding, Clumping, Compact, and Tufted
$10.99
$10.99
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Boulder Blue Fescue (Festuca glauca 'Boulder Blue') is a stunning ornamental grass producing tight, symmetrical mounds of intensely metallic blue-gray foliage that glows brilliantly in full sun. The fine, needle-like blades form a perfectly rounded, architectural clump that serves as a year-round focal point in borders, rock gardens, and container plantings. In late spring, slender flower stalks rise above the foliage mound, adding graceful movement and a soft, feathery texture to the display.

These Professional Grade 4" plants are grown with heritage practices, developing compact, fibrous root systems that anchor firmly and establish quickly in a wide range of well-drained soils. Boulder Blue Fescue is one of the most architectural and versatile ornamental grasses available — equally effective as a border edging plant, rock garden specimen, container accent, or mass planting for textural contrast. Its exceptional drought and heat tolerance makes it an outstanding choice for water-wise, low-maintenance, and Mediterranean-style landscapes.

  • Intensely Metallic Blue-Gray Foliage: Among the bluest of all ornamental grasses, Boulder Blue produces a striking, jewel-toned hue that holds its color from spring through fall — providing year-round structural interest and color contrast in beds and borders.
  • Perfectly Rounded Architectural Form: The tight, symmetrical mounding habit creates a natural sculptural element in the garden — ideal for repeating in formal borders, lining pathways, or anchoring mixed container plantings.
  • Exceptional Drought & Heat Tolerance: Once established, Boulder Blue Fescue thrives in hot, dry conditions with minimal supplemental irrigation — a top performer in water-wise, xeriscaping, and Mediterranean-style garden designs.
  • Outstanding Rock Garden & Container Plant: The compact size, striking color, and architectural form make this an ideal choice for rock gardens, gravel gardens, troughs, raised beds, and mixed patio containers.
  • Cold Hardy & Long-Lived Perennial: A tough, reliable ornamental grass that returns year after year in a wide range of climates, maintaining its dramatic blue coloring and tidy clumping habit with minimal seasonal maintenance.

These 4" healthy live plants thrive in full sun (6+ hours) with sharply well-drained soil and low to moderate water. Excellent drought tolerance once established; avoid clay soils and overwatering, which can cause crown rot. Hardy in USDA zones 4–8. Mature height: 8–12 inches; spread: 10–14 inches. Bloom time: May–June. Divide clumps every 2–3 years in early spring to maintain vigor and the characteristic brilliant blue color.

We use expedited shipping policies to protect plant health and minimize plant stress in transit.  All plants are in transit for only 1-3 days. (This does not guarantee 3-day delivery as orders are not always packed and sent out on the day of your order.) We send out deliveries on a weekly schedule to ensure quick transit times, so your order may not be packaged and shipped until later in the week. For instance, we may hold shipments to avoid weekend delays that keep plants in transit for longer.

All packaging includes eco-friendly material and our shipping methods are tested regularly to ensure plants arrive healthy upon arrival.

Additionally, any delays or damages in shipping are covered by our Healthy Plant Guarantee.

If you're plants arrived damaged, we will happily replace them for free!

Please contact us, send a picture, and detail any damage, so that we can continue to improve our shipping process and make sure you receive the healthy plants you paid for.

Mature Height is 6"–1'

Mature Spread is 6"-12"

Watering: Let dry

Blooms in:

  • Summer

Special Features:

    Reviews

    4.53 ★ (105)
    Verified