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Blue Oats Grass planted in a landscape, long thin decorative grass that is blue in color with long tan shoots of seeds

Blue Oat Grass

Helictotrichon sempervirens

Shipping Calculated at Checkout

SizeSM. GRASS||#1 container||Ships in|Spring 2026

Not available in your area

DELIGHTFULLY WHIMSICAL BLUE ORNAMENTAL GRASSES

FEATURES:

  • Steely blue-green foliage 
  • Tall midsummer blooms of light brown
  • Foliage maintains an attractive light brown color through fall
  • Great in mass plantings 
  • Extremely low maintenance and combines well with other plants
  • Fits many landscape designs, container compatible
  • Hand Selected, Fresh from the Grower
  • Ships in a plant-safe designed box

Growth Facts

Hardiness Zone 4-8
Mature Height 2-3' tall
Mature Width 2-2.5' wide
Exposure Full Sun
Spacing 2' apart

Why Plant Blue Oat Grass?

The Blue Oat Grass is a perennial grass offering lovely steel blue foliage with a wonderful pale brown bloom in midsummer. While it does resemble the Blue Fescue, the Blue Oat Grass is actually larger growing at an upwards of 18-30 inches tall. Forming in dense clumping masses, this plant enjoys full sun with well draining soil. This deer, drought, and rabbit tolerant grass also attracts butterflies.

The Blue Oat Grass won the Award of Garden Merit from the Royal Horticultural Society in 1993, considered to be a mark of quality. In 2004 it was selected for Great Plant Picks.

How to use Blue Oat Grass in the landscape?

The Blue Oat Grass is an attractive ornamental grass that brings a uniqueness to any design. This plant offers dimensions to all landscapes with its unique color and texture. It's height makes it perfect for bed and border accents planted along walkways, or in a rock garden. Planting these in masses adds graceful movement to your landscapes. The Blue Oat Grass fits a multitude of landscape designs. It is helpful for erosion control, and for fire-scaping designs (aiding your home or landscape in more arid states that may encounter forest fires).

Planting Zones

Hardiness Zone: 4-8

How To Plant Blue Oat Grass

Survives best in well-draining soil with full sun, low maintenance and, for best results, we suggest feeding once yearly with our Elements Fertilizer.

How To Water

These grasses are capable of enduring a drier soil but do take to watering regularly.

How To Fertilize

Incorporate Elements Starter Plant Food granular form into the soil when planting. If planting in spring or summer, start fertilizing late fall using Elements Starter Plant food granular form on an annual basis each late fall. If planting in the fall, use Elements fertilizer while planting and start your regular annual fertilizing the following fall. Continue this for the first three years to get your plant well established as it gives your tree the nutrients it needs to produce lush new growth for the following spring.

How To Prune

The Blue Oat Grass has a very easy care routine. Simply remove old leaves towards the end of the season.

How Does Shipping Work?

Bower & Branch Trees, the real BIG trees, don’t fit in a box! Our big trees, sizes XL and bigger, require expert delivery and care, that means our extra-large trees are shipped on Bower & Branch trucks. We are the only ones who know how to ship our big and bigger trees and plants with tender loving care. We deliver your trees and plants directly to you. Ask Bower & Branch about planting services – we'd be happy to assist in installation.

*For Big trees and Shrubs, Size XL and bigger: Review our Seasonal Shipping Timelines and Policy here.

Your trees and plants are grown across the United States at various Bower & Branch Growers. Depending on your location, your plant orders may be shipped from various locations. Please expect orders with multiple items to be delivered over a number of days as a result. Orders made up of numerous items or selections will not arrive at your home on the same day.

Shipping Delays:

From time to time, Bower & Branch Growers may determine to delay order shipment based on various factors for plant health. Weather in your region, as well as, where your plants are grown, is always considered when shipping. Extreme weather conditions may delay some or all of your order. Bower & Branch allows our Growers to make final shipping decisions based solely to benefit your trees and plants’ health and success.

How Does Sizing Work?

The size of our trees have nothing to do with the container size like you may find elsewhere–big doesn't mean just height - it’s also vigor, age, and overall health. Other online retailers are going to tell you that a plant is a seven gallon, that means nothing to your tree or plant (or you.)

Our trees for sale online are graded on large, x-large, and even bigger sizes. This is because our trees are sized by their age—the higher the letter, the more mature the tree. The age determines the trees’ overall height, size of the trunk and the overall branch density.

All of these characteristics are what you should be looking for when choosing a tree for immediate impact and instant curb appeal. Our extra-large tree and plant sizes are sure to wow you and your neighbors!

See the size guides below.

How Trees are Shipped
Size 4XL D Trees Size 3XL C Trees Size 2XL B Trees Size XL A Trees Size LARGE AA Trees

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