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Helictotrichon sempervirens

Helictotrichon sempervirens – Blue Oat Grass

Helictotrichon sempervirens – Blue Oat Grass

Format
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Regular price 12.97$
Sale price 12.97$ Regular price

Exposure

  • Sun

Rusticity

3, 4, 5, 6, 7, 8, 9

Bloom time

  • June
  • July
  • August

  • Radiant steel blue evergreen foliage
  • Graphic and upright architectural silhouette
  • Exceptional resistance to summer drought
  • Low maintenance and trouble free
  • Outstanding hardiness for cold winters

Wake up the visual texture of your garden landscapes with this ornamental grass featuring outstanding architectural elegance. It forms a graphic, mounded clump of rigid, bright steel-blue blades that maintain their distinctive metallic sheen all season long. Its spiky habit and fine texture bring fluid movement to the garden when caught by the wind, creating a striking contrast when paired alongside wider-leaved perennials.

Characteristics

  • Foliage : Evergreen, long, and tapered leaves display an intense steel-blue coloration covered with a silvery bloom. This dense clump maintains its clean structure and distinctive colour even during the cold season.
  • Blooms / Fruit / Stems : Slender, upright stems hold airy, straw-coloured flower panicles in mid-summer, rising gracefully above the mound of metallic foliage.
  • Light : Position in full sun to intensify its blue colouration and guarantee a perfectly upright silhouette.
  • Habit : Its bushy, compact, upright, and naturally well-branched silhouette maintains an impeccable and uniform structure without sagging.
  • Growth : This perennial grows at a moderate pace, reaching its mature size within two to three seasons.
  • Soil : Prefers loose, poor to moderately rich soil that offers absolutely impeccable drainage to prevent winter root rot.
  • Temperature : It demonstrates exceptional hardiness, easily withstanding the rigours of zone 3.
  • Resistance : It stands up superbly to summer drought, fungal diseases, and naturally deters white-tailed deer as well as hares and rabbits.

Use

  • Types of use : Integrate it as a mass planting in rock gardens, structure contemporary borders along pathways, or plant it as a Thriller in a container on the terrace.
  • Ornamental benefits : It delivers a massive visual impact thanks to its unique metallic hue and enhances garden structure throughout the winter months.

Maintenance

  • Watering : Water moderately after planting to encourage establishment. Allow the soil to dry out completely between waterings once the plant is fully established.
  • Fertilizing : Avoid excessive fertilizing, which weakens its upright habit. A simple application of light compost in early spring is more than sufficient.
  • Pruning : Clean in spring by combing through or cutting back dry, winter-damaged foliage to stimulate the emergence of fresh blue growth.
  • Planting : Install plants in spring into well-warmed soil while maintaining adequate spacing to allow for natural spread.

Plant details

Dimensions

Spacing
- 24 in.
Spread
18 - 24 in.
Height
24 - 35 in.

Characteristics

Habit:

  • Bushy
  • Upright
  • Rounded

Flowering colours:

  • Brown
  • Yellow

Plant needs

Watering:

  • Tolerates dry and well-drained soil
  • Moderate

Maintenance:

  • Easy
  • Clean in spring

Soil requirement:

  • Well-drained
  • Loose
  • Adaptable

Features

Resistance:

  • White-tailed deer
  • Hare and rabbit
  • Heat
  • Cold
  • Drought
  • Disease

Attract:

  • Birds

Use:

  • Border
  • Mass planting
  • Flower bed
  • Rock garden
  • Container
  • In-ground
  • Thriller

Attribute:

  • Small landscaping and garden
  • Flexible use
  • Evergreen foliage

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