Sapphire Blue Oat Grass
Helictotrichon sempervirens 'Sapphire'
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Sapphire Blue Oat Grass - #5 Container is backordered and will ship as soon as it is back in stock.
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Delivery and Shipping
Delivery and Shipping
Delivery and Shipping
Fast, Safe Plant Delivery
Ships in 3-4 business days • Tracking provided • Weather protected
Under $50 | $9.99 |
$50 - $99.99 | $14.99 |
$100 - $149.99 | $16.99 |
$150+ | $24.99 |
✓ Zone-specific timing • ✓ Professional packaging • ✓ Health guarantee
Understanding Plant Options
Nature Hills offers plants in two main formats:
- Container Plants: Grown in pots with soil, sized by container volume and plant age
- Bare Root Plants: Dormant plants without soil, sized by height measurements
Container Plant Sizes
Container sizes indicate plant age and growing capacity rather than liquid volume equivalents. Our containers follow industry-standard nursery "trade gallon" specifications, which differ from standard liquid gallon measurements.
Young Plants (6 months to 18 months old)
Container Size | Actual Volume | Metric Equivalent |
---|---|---|
2" x 2" x 3" | 0.18 - 0.21 dry quarts | 0.20 - 0.23 dry liters |
4" Container | 0.31 - 0.87 dry quarts | 0.35 - 0.96 dry liters |
4.5" Container | 0.65 dry quarts | 0.72 dry liters |
6" Container | 1.4 dry quarts | 1.59 dry liters |
1 Quart | 1 dry quart | 1.1 dry liters |
5.5" Container | 1.89 dry quarts | 2.08 dry liters |
Established Plants (18 months to 2.5 years old)
Container Size | Actual Volume | Metric Equivalent |
---|---|---|
2 Quart | 2 dry quarts | 2.2 dry liters |
#1 Container | 2.26 - 3.73 dry quarts | 2.49 - 4.11 dry liters |
5" x 5" x 12" | 3.5 - 4.3 dry quarts | 3.85 - 4.74 dry liters |
Mature Plants (2-4 years old)
Container Size | Actual Volume | Metric Equivalent |
---|---|---|
#2 Container | 1.19 - 1.76 dry gallons | 5.24 - 7.75 dry liters |
#3 Container | 2.15 - 2.76 dry gallons | 8.14 - 12.16 dry liters |
Large Plants (3-5 years old)
Container Size | Actual Volume | Metric Equivalent |
---|---|---|
#5 Container | 2.92 - 4.62 dry gallons | 12.86 - 20.35 dry liters |
#6 Container | 5.25 - 6.01 dry gallons | 23.12 - 26.42 dry liters |
#7 Container | 5.98 - 6.53 dry gallons | 26.34 - 28.76 dry liters |
Bare Root Plants
Bare root plants are sold by height from the root system to the top of the plant. Plants may exceed minimum height requirements.
Common Sizes:
- Trees: 1 foot, 2 feet, 3 feet, 4 feet, 5 feet, 6 feet
- Shrubs & Perennials: 1 foot, 18 inches, 2 feet
Important Notes
Container Volume Specifications
- Trade Gallon Standard: Our containers follow industry-standard "trade gallon" specifications established by the American National Standards Institute (ANSI Z60.1) for nursery stock
- Volume Variations: Actual soil volume may vary due to plant root systems and growing medium settlement
- Age Indicators: Container size primarily indicates plant age and maturity rather than liquid volume equivalents
Growing Conditions
- Plant size can vary based on variety and growing conditions
- Container size helps indicate plant maturity and establishment level
- Larger containers generally mean more established root systems and faster landscape establishment
Seasonal Availability
- Bare root plants are available seasonally when dormant
- Container plants are available throughout the growing season
- Specific varieties may have limited availability in certain sizes
Questions?
For questions about specific plant sizes or availability, please contact our plant experts who can help you choose the right size for your landscape needs.
Plant Highlights
Sapphire Blue Oat Grass highlights at a glance!
Specifications
Specifications
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Brand
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Botanical Name
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Growing Zones
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Mature Height
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Mature Spread
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Sun ExposureFull Sun
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Moisture
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Soil
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Growth RateMedium
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Pollinator Friendly
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Pruning Time
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Bloom PeriodSummer
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Photos Provided ByWalters Gardens, Inc - www.waltersgardens.com

Growing Zones 4-8
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 spot...place 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.