Blue Oat Grass

Helictotrichon sempervirens

Mediterranean native perennial grass with clumping, handsome blue-gray foliage. High-reaching stalks crowned with beige flower heads appear mid to late summer. This species is at home in desert gardens, as well as the traditional perennial border. Spot in the landscape to add color accents, or en masse to create a sea of fine-textured foliage.


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Blue Oat Grass

Helictotrichon sempervirens
Plant Type

Garden Use

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Flower Color

Foliage Color

Approximate size upon delivery*

1 gallon, 14" h x 16" w

Deciduous / Evergreen

Bloom Time

Mature Size

Growth Rate

Growth Habit


Light Needs

Water Needs


Sunset Zone

USDA Hardiness Zones

Garden Style


Common Nursery Plant Forms

We use plant forms to describe how a plant has been grown in our nursery. Here are some common nursery plant forms explained.

A bush or multi refers to a shrub or small tree grown with multiple stems.

A standard has been trained to have a single trunk.
Many bush/multi plants are also available in standard form, so be sure to check the form when you add plants to your cart.

A column refers to a tree or shrub grown into a tall, narrow shape.

An espalier is a plant trained to grow in a two-dimensional form against a trellis.

Staked plants will be tied to a wooden or plastic stake during the growing process. This technique is generally used on vines but is sometimes used for certain trees or shrubs.