blue fescue (Festuca glauca 'Boulder Blue') plant — close-up photo
Easy to grow

blue fescue

Festuca glauca 'Boulder Blue'

Overview

Blue fescue (Festuca glauca 'Boulder Blue') is an amazing ornamental grass with an upright clumping habit. It is rich with bright blue-green foliage that will enhance any garden. It is drought tolerant, disease resistance, and low maintenance, making it perfect for a busy lifestyle. In addition, it requires minimal pruning and is slow-growing. It will reach heights of 8-12” and is ideal when used in borders of rock gardens, cottage gardens, and containers. Even in the coldest of climates, this hardy grass will maintain its color and remain evergreen. Its eye-catching foliage and minimal care make it a great choice for a beautiful addition to any garden.

Care Guide

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Watering

Water blue fescue (Festuca glauca 'Boulder Blue') about once a week during the growing season (spring to fall). The frequency of watering can be adjusted during the hot summer months to help the plant deal with the heat, but avoid over-watering. When watering, allow the soil to become slightly moist before stopping. Ensure that the soil is allowed to dry out in between waterings as blue fescue does not tolerate soil that is too wet. If the soil feels dry, give the plant some water.

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Light

Blue fescue (Festuca glauca 'Boulder Blue') requires 4 to 6 hours of direct sunlight each day, divided between morning and afternoon for best results. This plant thrives in full sun, but too much direct sun can lead to yellowing and drying of the foliage. On the other hand, not enough sun leaves foliage limp and weak, reducing their ornamental appeal. Varied light conditions are necessary for best health.

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Temperature

Hardiness zone 4–9.

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Pruning

Blue fescue (Festuca glauca 'Boulder Blue') is a low-maintenance, low-growing ornamental grass which should be pruned annually in late winter or early spring. To prune, cut back the foliage to just above ground level using sharp, clean shears or scissors. Dead or decaying foliage can also be removed at this time. Pruning promotes healthy new growth and allows the grass to fill in patches and become denser.

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Propagation

Division, Seed Propagation, Cutting, Layering Propagation

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