How to Grow AC Grazeland
Wikimedia Commons
AC Grazeland
Bromus catharticus × Bromus riparius hybrid
grassAC Grazeland is a hybrid bromegrass developed by Agriculture and Agri-Food Canada for pasture and rangeland use. This cool-season perennial grass combines the nutritional quality and productivity of bromegrass with improved drought tolerance and persistence. It is particularly valued in western Canadian prairie regions for livestock grazing and hay production.
When should you plant AC Grazeland in your zone?
Get a personalized planting timeline — when to start seeds, transplant, and harvest — based on your USDA zone and local frost dates. Free to start.
Example AC Grazeland timeline · Pittsburgh, PA (Zone 6b)
-
Plant AC Grazeland
Around Apr 17Near Pittsburgh's average last spring frost.
-
Tend & protect
Late spring–summerWatering, feeding, and pest-watch reminders.
-
Harvest AC Grazeland
Around Oct 14≈ 180 days after planting
Sample dates for Pittsburgh, PA. Sign up to get exact AC Grazeland dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 2-5; best suited to cool, semi-arid prairie climates
Sign up free to see if AC Grazeland grows in your zone — and get a personalized planting timeline.
Get my AC Grazeland timeline →Growth Stages
Germination & Seedling
2-4 weeksSmall seedling emerges with 2-3 leaves; very fine textured foliage; roots developing rapidly
Keep soil consistently moist but not waterlogged. Protect from trampling or grazing for 6-8 weeks. Avoid herbicide application during first 3-4 weeks.
Establishment & Early Growth
4-8 weeksPlant develops deeper root system and tiller formation begins; foliage reaches 6-12 inches; multiple shoots emerging
Maintain moderate moisture. Light grazing acceptable once plants are 8+ inches tall. Avoid heavy grazing first year. Monitor for weeds and outcompete with adequate seedbed preparation.
Vegetative Development
8-16 weeksDense tillers forming; plant height 12-24 inches; deep green color; vigorous leaf growth
Manageable grazing is appropriate. Fertilize with nitrogen in spring (40-60 lbs/acre for maintenance). Avoid defoliation below 2 inches during peak growth.
Heading & Flowering
2-4 weeksSeed heads emerge at stem tips; height reaches 24-36 inches; plant shifts energy to reproduction
Optimal harvest timing for hay is late boot to early heading stage for best forage quality. Stop grazing to allow seed head development if seed harvest intended.
Seed Maturity & Dormancy
4-8 weeks plus dormancySeed heads mature to tan/brown color; foliage transitions to dormancy; plant withstands cold stress
If harvesting seed, cut at soft dough stage. Allow adequate rest period before winter grazing. Established plants are very winter-hardy.
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
-
Monitor populations; natural predators and parasitoids manage populations in most years; insecticide spraying rarely needed in established pastures
-
Light to moderate defoliation tolerated by established plants; insecticide only if severe outbreaks occur
-
Mainly an issue in seedling stage; ensure good seedling vigor and avoid bare patches
-
Occurs in seed heads; rotate grazing to break disease cycle; fungicide not economical for pastures
Uses
Livestock Forage & Pasture
CulinaryAC Grazeland is a premium forage grass for cattle, sheep, and horses. It provides excellent nutritional value (digestible energy and crude protein) for grazing pastures and hay production. [source]
Hay Production
HouseholdThe grass yields high-quality hay when harvested at the correct phenological stage, with superior digestibility compared to many other bromegrass cultivars. Suitable for both large round bales and small square bales. [source]
Wildlife Habitat & Erosion Control
WildlifeDense sod provides excellent nesting habitat for grassland birds and prevents soil erosion on slopes and marginal lands. Deep root systems stabilize soil and improve water infiltration. [source]
Drought Tolerance & Prairie Adaptation
AgriculturalSpecifically bred for western Canadian prairie conditions, AC Grazeland exhibits superior drought tolerance and persistence compared to standard bromegrass. Maintains productivity in semi-arid environments with 10-16 inches annual precipitation. [source]
Soil Health & Rangeland Restoration
AgriculturalImproves soil structure and organic matter through extensive root systems; useful in reclamation of degraded rangeland and pastures seeking long-term sustainability. [source]
Harvest Tips
For hay: Cut at boot to early heading stage (late May to early June in prairie regions) when forage quality is highest and before seed shattering. For grazing: Allow 2-3 inches regrowth before subsequent grazing to maintain plant vigor. For seed: Harvest at soft dough stage; dry thoroughly to prevent mold. AC Grazeland is a perennial so harvesting extends year to year with proper management.
Fun Facts
- 🌱 AC Grazeland was developed through a breeding program by Agriculture and Agri-Food Canada at the Lethbridge Research Centre, specifically addressing the challenges of cool-season forage production in western Canada.
- 🌱 The grass is a hybrid combining traits from two Bromus species, giving it superior persistence and productivity compared to either parent species alone.
- 🌱 Once established, AC Grazeland can remain productive for 8-15+ years with proper grazing management, making it a highly economical pasture investment for ranchers.
Join 30,000 gardeners planning their gardens with LizPlants.
Get your personalized AC Grazeland planting timeline
Tell us your zip code and we'll calculate exactly when to start AC Grazeland seeds, transplant seedlings, and harvest — based on your USDA zone and local frost dates. Includes calendar reminders and printable task lists. Free to start.
Get my AC Grazeland timeline →