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Hierochloe odorata

Also called Vanilla Grass, Holy Grass


More About Hierochloe odorata

  • AKA Anthoxanthum nitens
  • Forms a spreading, upright mound of gray-green foliage
  • Blades reach 60 cm high, then sag toward the ground, with upturned ends
  • Yellow flower panicles rise very slightly above the foliage
  • As the name suggests, this grass has a sweet vanilla scent
  • Bloom Time: Spring
  • Flower Size: 5-10 cm
  • Grass Type: Cool Season

Interesting Notes:

Native to Ontario

Cool Season Grasses: These grasses do the majority of their growing in early spring and start again when temperatures start to cool in the fall. During the warmer summer months, they stop growing and some will even go dormant. Cool season grasses flower in the spring or early summer. Most cool season grasses grow best in a consistently moist soil.
 
Dried leaves can be made into braids and burned as incense.

Zone:

3

Height:

30-60 cm

Spread:

50-150 cm

Colour:

Yellow
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Sweet Grass Growing and Maintenance Tips

Best grown in a wet to moist soil, in full sun to partial shade. This grass spreads aggressively by rhizomes, up to 60 cm per year, making it a good choice for erosion control. Make sure you have a large site for this grass.


Hierochloe odorata Characteristics

Full Sun
Full Sun
Partial Sun/Shade
Partial Sun/Shade
Attracts Birds
Attracts Birds
Fast
Fast
Salt Tolerant
Salt Tolerant
Native to Ontario
Native to Ontario
Bog or water garden
Bog or water garden

Soil Moisture

Moist to Wet Soils

Attributes

Deciduous

Flowering Time

Lt. Spr-Sum
Summer

Habit

Spreading
Mounding

Foliage Color

Green
Gray

Landscape uses

Roadside planting
Naturalizing
Woodland/woods edge