Sapphire Blue Oat Grass in Landscape
Sapphire Blue Oat Grass in Landscape
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Sapphire Blue Oat Grass

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Colorful, Architectural Sapphire Blue Oat Grass

  • Narrow, Silvery-Blue Blades Arch Up and Out
  • Gorgeous Tan Blooms
  • Useful Spreading, Mounded Habit
  • Excellent Groundcover
  • Durable
  • Can be Grown in Containers
  • Extremely Cold Hardy
  • Tolerates Coastal Conditions
  • Rarely Damaged by Deer

Turn a challenging, sun-baked area into a colorful oasis with support from these showy, small Ornamental Grasses. In no time, they'll grow to provide a dynamic feature for your landscape!

You'll definitely fall for the steel-blue blades of Sapphire Blue Oat Grass (Helictotrichon sempervirens Sapphire'). Their silvery overcast catches that bright light and filters it back as a cool, subtle tone that soothes your spirit.

The thin blades also loft and sway in the breeze. Use several of them to enlarge the kinetic display and enjoy a rippling sense of movement in your space.

Sapphire Blue Oat Grass is an improved modern cultivar that performs like a champ in rough, tough conditions. The powdery color is actually more intense in dry soils!

Consider this smaller Ornamental Grass as a building block to create an effective landscape design. Sapphire Blue Oat Grass provides an incredible, high-end look when massed together.

A single yearly trim sets the stage for a season's worth of rugged beauty. Add tall spikes that produce tan, oat-like seed heads as a late summer star.

Texture, color, movement and easy-care are the hallmarks of this high-capacity performer. Rely on these cool-season grasses as an architectural design element year after year.

Our growers have earned their reputation in the Green Industry as reliable suppliers of commercial-grade plant material. That's why we have professional garden designers buy out entire crops to use in their plans.

If you have a tough, sunny your order for Sapphire Blue Oat Grass today. Please don't delay and risk disappointment, for we will sell out of our limited inventory.

How to Use Sapphire Blue Oat Grass in the Landscape

Don't underestimate these handsome, clump-forming grasses. They are tough as nails, and tolerate harsh coastal conditions and rock gardens.

Develop a showy mass planting on hills, slopes and terraces. Plant them 20 inches apart on center; measuring from the center of one to the center of the next.

Keep newly installed mass plantings weeded.Mulch lightly, but don't let it touch the crown of your plants.

Leverage the graceful foliage to draw the eye of your guests at the entrance of your home. The silvery-blue blades spill like a fountain and provide a cool respite.

Line your front walk with a wide, curved planting bed of these exquisite mounding grasses. You'll add visual interest and increase your curb appeal!

Take this idea and run with it out back, as well. Sapphire Blue Oat Grass is a natural choice to add structure near your entertainment area.

Kick back and survey your world, enjoying the sound and sight of this wind-tossed groundcover. They add a very professional look without requiring much care.

Add them as a continuous edging along Xeriscaped plantings. This unique grass is listed on several state's Firewise lists for defensible spaces.

Even if you don't have a landscape...keep several of them in a streamlined series of matched containers. They'll elevate the look and feel of your balcony, deck, or dry Roof Garden.

Snip the mature seed heads to use as modern cut flowers. They'll dry in the vase for an outstanding winter decoration for your mantle.

Sapphire Blue Oat Grass also makes very special gift plants. Use a few as a perfect Father's Day present, or as a thoughtful housewarming present.

#ProPlantTips for Care

Meet these simple requirements to get the most from these charming plants. They'll faithfully delight you all season long.

First, plant them where they are soaked by full sun. Give them at least six hours of direct sunlight a day.

The soil needs to be well-drained, so check to see how long it takes for rain water to absorb. If the ground stays soggy, you might consider one of our Sedges...or bring in additional soil for a raised bed to improve drainage.

Supply a consistent amount of water to protect your investment. Ensure container grown plants receive supplemental water.

In the warmer zones, it may remain nearly evergreen. In early spring, gently rake out any dead foliage and seed heads in warmer climates.

For Zones 4 through 6, cut the foliage off to the ground in early spring. Watch as new growth comes back from the crown!

Place your order for Sapphire Blue Oat Grass today! You'll be so pleased to track your package and open that sturdy box from Nature Hills.

Buying Options for Plants

Nature Hills sells a large variety of plants with several options available. Plants are offered in both potted containers and as dormant bare root without soil. Here is a helpful resource to understand your options as you create a beautiful landscape with help from Nature Hills.

Ever wonder what a larger plant will mean for your landscape? Container Sizes are really all about the age of the plant!

Seasonally, Nature Hills offers hand selected, high quality bare root trees, shrubs and perennials. Bare root plants are sold by height from the top of the root system to the top of the plant. Plants may be taller than the height minimums.

  • Popular sizes of select trees are 1 foot, 2 feet, 3 feet, etc.
  • Popular sizes of select bare root plants is 1 foot, 18 inches, etc.

Nature Hills Container Size by Volume

Young Plants to 18 Months
Size Volume
2"x2"x3" Ranges from .18 to .21 dry quarts / .198 to .23 dry liters in volume
4.5" Container Equal to .65 dry quart / .72 dry liter in volume
Sprinter Pot Equal to .63 dry quart / .69 dry liter in volume
4" Container Ranges from .31 to .87 / .35 to .96 dry liter in volume
6" Container Equal to 1.4 dry quarts / 1.59 dry liters in volume
1 Quart Equal to 1 dry quart / 1.1 dry liter in volume
5.5" Container Equal to 1.89 of a dry quart / 2.08 dry liters in volume
4"x4"x5" Ranges from .8 to 1.1 dry quarts / .88 to 1.2 dry liters in volume
4"x4"x6" Ranges from 1.0 to 1.3 dry quarts / 1.1 to 1.41 dry liters in volume
4"x4"x9" Ranges from 1.1 to 2.1 dry quarts / 1.2 to 2.3 dry liters in volume
4"x4"x10" Ranges from 1.7 to 2.3 dry quart / 1.87 to 2.53 dry liters in volume
Plants 18 Months - 2.5 Years Old
Size Volume
2 Quart Equal to 2 dry quarts / 2.2 dry liters in volume
#1 Container Ranges from 2.26 to 3.73 dry quarts / 2.49 to 4.11 dry liters in volume
5"x5"x12" Equal to 3.5 to 4.3 dry quarts / 3.85 to 4.74 dry liters in volume
Plants 2 - 4 Years Old
Size Volume
#2 Container Ranges from 1.19 to 1.76 dry gallons / 5.24 to 7.75 dry liters in volume
#3 Container Ranges from 2.32 to 2.76 dry gallons / 10.22 to 12.16 dry liters in volume
Plants 3 - 5 Years Old
Size Volume
#5 Container Ranges from 2.92 to 4.62 dry gallons / 12.86 to 20.35 dry liters in volume
#7 Container Ranges from 5.98 to 6.08 dry gallons / 26.34 to 26.78 dry liters in volume

About Plant Sentry™

Plant Sentry is designed to protect both consumers and the nursery trade from invasive plant pests and diseases. Sites that display the Plant Sentry protection badge are protected from consumers buying and nurseries shipping material carrying invasive pests and diseases.

This proprietary eCommerce software prevents the shipment of a restricted plant to each state. The Plant Sentry system includes a shipment certification program. The Plant Sentry Compliance Officer works closely with and each nursery or fulfillment center to ensure only compliant plants are sold to customers.

Click Here to learn more

Plant Sentry


To obtain a more accurate shipment time-frame, simply enter your zip code in the “Find Your Growing Zone” box to the right. Our plants are grown all over the country and lead time on items may be different because of this. Once your order is placed, you will also receive the specific shipment time-frame information as part of your order confirmation. Once an item ships, you will receive shipment notification and tracking numbers, so you can follow along while your plant travels to your doorstep.

Shipping Rates

At Nature Hills we handle, package and ship the products you order with the utmost care to ensure healthy delivery. Shipping and handling charges are calculated based on the tables below. Please note that some items include an additional handling surcharge, these will be noted on the item's product page.

From To S&H
0 - 19.99 14.95
20 - 49.99 17.95
50 - 69.99 19.95
70 - 99.99 24.95
100 - 129.99 29.95
130 - 130+ Approx 25%

Click here to see our full rates


Sapphire Blue Oat Grass Is Suited to Grow in Zones 4-8
Growing Zones 4-8
More Information
Botanical Name Helictotrichon sempervirens Sapphire'
Type Perennial
Mature Height 18 - 24 inches
Mature Spread 2 - 2 1/2 feet
Sun Exposure Full Sun
Soil Type Well Drained
Moisture Medium
Growth Rate Medium
Flower Color Yellow
Foliage Color Blue
Pollinator Friendly Yes
When To Prune Early Spring
Fragrant Not Applicable