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Blue Oat Grass

Helictotrichon sempervirens

Status: In stock

Product ID#: gboat
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Local Pick-up Waterloo, WI
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Product Description
Sun Exposure Sun
Bloom Time Summer
Soil Conditions Normal, Sandy, Dry
Flower Color Brown
Fruit Color Brown
Mature Plant Size (H x W) 20-24" x 20-24"
Blue Oat Grass has finely textured, blue foliage that grows in a mounded shape. It's a cool season ornamental grass that provides year-round interest in the landscape. Blue Oat Grass does well in mass plantings along borders, and prefers a dry, well-drained site, in order to thrive. The 1993 Award of Garden Merit from the Royal Horticultural Society and 2004 Great Plant Picks Winner!
  • Sun
  • Mature Plant Size (H x W) Mature Plant Size (H x W): 20-24" x 20-24"
  • Bloom Season Bloom Season: Summer
Key features
  • Deer Resistant
  • Native
  • Low Maintenance
  • Award Winning
  • Stone Mulch
Planting Care

Planting & Care for Blue Oat Grass

Preparation
  • Blue Oat Grass is finely textured and its blue foliage grows around 18" tall but in a mounded shape.
  • It's a cool season ornamental grass that provides interest all year long in the landscape.
  • This plant is great in mass plantings along borders.
  • It's hardy to -25 degrees F.
  • This grass needs to be planted in a very dry site.
  • Hardiness zone 4.
  • This ornamental grass likes full sun and well-drained soils.
Opening Plant Material
  • Container - Completely saturate all container plants by putting in a larger container of water until stops bubbling, then remove the plant from the container. 
Planting Container
  • Dig a hole no deeper than the depth of the container and 6" or more wider on the sides.
  • Slide plant from pot by tapping on the bottom of the pot.
  • With shovel or knife trim bottom 2" off of the root ball for plants in plastic containers.
  • Rotate the plant to the proper position. Never lift or move plants by the tops.
  • Place the root ball in the hole.
  • Adjust the plant height so the root crown is slightly higher than the ground.
  • Place fertilizer packets into the bottom of the hole (if purchased). *Use Our Recommended Fertilizer
  • Back-fill the hole with soil, making sure the top of the root ball is visible and slightly higher than the soil around it.
  • Firm the soil around the plant. Water well to settle soil around the root ball.
  • Water frequently when newly planted. 
Pruning - After Planting
  • Container - Although it is not essential for container plants to be pruned after planting, a light pruning to remove any broken branches during shipment and improve shape will help the looks of your new planting.
Pruning - Through-out the Season
  • Cut back late in March if possible before new growth begins.
  • See our instructional video on pruning ornamental grasses in the landscape on our “videos” tab.
 Watering - After Planting
  • Plants typically take approximately 6 weeks to establish new roots in your soil. During this period, water plants as oft en as every 2-4 days at the start and at least a minimum of once per week.
  • Beyond the 6 week establishment period, water once per week, unless rains occur.
Watering - Through-out the Season
  • After the first season, plants should only be watered during extended periods without rain.
  • How do you know if your plants need water? The easiest way to tell is to touch the soil around the roots. If it is moist, there is no need to water. If it is dry, give it a good soaking with the hose end (no nozzle) watering the soil only, not the leaves.

Planting & Handling Help

Download our Planting and Handling Guide below to plan for a successful arrival and install of your plants. Be sure to water all plants as soon as they arrive and every day until you’re ready to plant. Keep any bare root bundles in a shady, cool spot with the roots covered at all times.

Learn More

Watch our videos on handling bare root plants, how your order is prepared for shipment and more.

Plant Sizing

What is the difference between Containers, Grow Bags, Bare Root, and Balled & Burlap (B&B)?

Shipping Times

Our FedEx and local shipping times depend on two factors, one is by the region and the second is the type of product being shipped. For example, small fruits are only shipped in spring, but majority of our perennials are shipped from spring until fall. Keep in mind the dates below act as a general guide. Due to unpredictable weather, staffing, inventory and industry demands these timelines can change. Therefore, we cannot guarantee any of these times.

 

Shipping Dates by Region*

 

Northern Cold Region: April 22nd - November 7th

Northern Region: April 15th - November 7th

Middle Region: April 1st - November 7th

Southern Region: March 15th - November 7th

Local Delivery (small radius from Waterloo, WI): April 22nd - November 7th

 

Shipping Dates by Season*

 

Spring Shipping: Region Start Date (above) - May

Fall Shipping: September - November

 

Due to unpredictable weather, these times may vary. Some varieties are exceptions due to heat and plant health reasons. Enter your shipping zip code at the top of this page and be sure to check the shipping information on each product before you add it to your cart. If the product is too large or restricted in your state, you will not be able to checkout with that item in your cart.