Blue Grama, Mosquito Grass

Blue Grama, Mosquito Grass

Bouteloua gracilis

This ornamental grass forms a spreading clump is valued for its texture, movement, and four-season presence in the mixed border or mass planting.

  • Bold foliage provides strong textural contrast in the mixed border from spring through winter.
  • Flower heads add a secondary layer of ornament through summer and autumn.
  • Leave stems standing through winter for wildlife value and structural interest; cut back hard to 10–15 cm in early spring.
  • Best in full sun with moist, average, dry, well-drained soil.
Size
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Plant Characteristics

Sunlight
Full sun
Soil Moisture
Moist, Average, Dry, Well-drained
Drought Tolerant
✓
Hardiness Zone
4 – 4
Mature Height (meters)
0.5 – 0.6
Mature Spread (meters)
0.25 – 0.3
Growth Rate
Medium
Foliage Colour
Green
Fall Colour
Yellow
Bloom Time
Summer
Habit
Spreading
Deer Resistant
✓
Rabbit Resistant
✓
Pollinator Friendly
✓
Attracts Birds
✓
Ontario Native
✓
Landscape Uses
Mass planting
Growing & Maintenance Tips
Mosquito grass can be grown in full sun or light shade in a wide range of soil types, however, it does not tolerate poorly drained, wet areas.It can be used as turf, and mowed regularly. If allowed to grow naturally, prune in early spring to make room for new growth.
Notes
Also referred to as Blue Gramma. Native to Ontarioand much of North America. Warm Season Grasses:These grasses are much slower starting in the spring. They do not push new growth until temperatures warm in early to midsummer. They flower later in the summer or fall with most blooms remaining into the winter. Most warm season grasses tolerate heat, humidity and drought; some even thrive in these conditions. Conversely, extra care should be taken when planting in early spring or late fall.

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