Sapphire Blue Oat Grass

Helictotrichon sempervirens 'Sapphire'

Sapphire Blue Oat Grass

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Click for Plant Facts – Height, Width, Sun, Water, & More!
Height : 24 inches (3 feet with the flowers)
Spread: 24 inches
Sunlight: full sun
Water Usage: dry to average
Landscape Use: Border Edging, General Garden Use
Flower Color: N/A
Bloom Period:N/A
Foliage Type: evergreen
Foliage Color: Blue
Deer Resistant?: No

Quick Description
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

What Makes it Special?
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.


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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.

This is a relatively low maintenance plant, and is best cut back to the ground in late winter before active growth resumes. It has no significant negative characteristics.

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.



Want more info on sizes?
IndyPlants sells landscape size plant material. These often come in black nursery containers and are classified in sizes such as #2, #3, #5, etc. This correlates to the volume of the container, 2 gallon, 3, gallon, 5 gallon, etc. The bigger the number, the larger the pot, and the larger the plant. You’ll also see larger sizes such as 2” BB, 2.5” BB, 3” BB, etc. This stands for ‘Balled & Burlapped’. These plants are usually much larger and are not transported in black nursery pots. The sizing correlates to the diameter of the trunk of the tree.

Your Plants, Our Promise

If there’s a problem with a plant you’ve ordered from us, we’ll make it right. Period. Drop us a line at support@indyplants.com with a brief description and photos, and we’ll get back to you ASAP.

Do you accept returns?

We do our best to handpick only the best quality plants from trusted, local nurseries. If for whatever reason your order doesn’t meet your expectations, you can return your plants for a full refund within 48 hours of delivery.

Do your plants have a warranty?

Nature can take a toll on even the best cared for plants. If your plant dies within one year from the date it was delivered, you’ll get an exact replacement to the best of our ability. If you’d prefer a substitution or a full refund, we’ve got you covered.