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Sapphire Blue Oat Grass

Category:

A striking clump forming perennial with highly ornamental steel blue foliage and spikes of tan flowers and seed in mid summer; evergreen in milder winters; cut to the ground in late winter in colder areas

Characteristics

Species:
sempervirens
Average Landscape Height:
24 inches (3 feet with the flowers)
Average Landscape Width:
24 inches
Genus:
Helictotrichon
Cultivar:
Sapphire
Branching:
herbaceous
Evergreen:
1
Plant Form:
mounded
Canopy:
closed
Growth Rate:
medium
Pruning:
late winter pruning
Summer Foliage Color:
steel blue
Maximum Light:
full sun
Minimum Light:
full sun
Maximum Moisture:
average
Minimum Moisture:
dry
Pollution Tolerance:
high

Ornamental Features

Sapphire Blue Oat Grass' attractive grassy leaves remain steel blue in color throughout the year on a plant with a mounded habit of growth. The tan seed heads are carried on plumes from mid summer to late fall.

Landscape Attributes

Sapphire Blue Oat Grass is an herbaceous evergreen perennial grass with a mounded form. It brings an extremely fine and delicate texture to the garden composition and should be used to full effect.

Planting & Growing

Sapphire Blue Oat Grass will grow to be about 24 inches tall at maturity extending to 3 feet tall with the flowers, with a spread of 24 inches. Its foliage tends to remain dense right to the ground, not requiring facer plants in front. It grows at a medium rate, and under ideal conditions can be expected to live for approximately 10 years. As an evegreen perennial, this plant will typically keep its form and foliage year-round.

This plant should only be grown in full sunlight. It prefers to grow in average to dry locations, and dislikes excessive moisture. It is not particular as to soil type, but has a definite preference for alkaline soils, and is able to handle environmental salt. It is highly tolerant of urban pollution and will even thrive in inner city environments. This is a selection of a native North American species. It can be propagated by division; however, as a cultivated variety, be aware that it may be subject to certain restrictions or prohibitions on propagation.

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