How to Grow Magna Bromegrass
Wikimedia Commons
Magna Bromegrass
Bromus catharticus var. magna
grassMagna Bromegrass is a robust perennial forage grass known for its high nutritional value and palatability for livestock. It exhibits excellent summer growth and drought tolerance, making it a popular choice for pastures and hay production in semi-arid regions. This cultivar is an improved variety of rescuegrass with superior vigor and seed production.
When should you plant Magna Bromegrass 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 Magna Bromegrass timeline · Pittsburgh, PA (Zone 6b)
-
Plant Magna Bromegrass
Around Apr 17Near Pittsburgh's average last spring frost.
-
Tend & protect
Late spring–summerWatering, feeding, and pest-watch reminders.
-
Harvest Magna Bromegrass
Late summer into fallBefore the first fall frost (≈ Nov 8)
Sample dates for Pittsburgh, PA. Sign up to get exact Magna Bromegrass dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 4-9, with best performance in zones 6-8
Sign up free to see if Magna Bromegrass grows in your zone — and get a personalized planting timeline.
Get my Magna Bromegrass timeline →Growth Stages
Germination & Emergence
2-3 weeksSeeds germinate within 7-14 days under moist conditions. Fine, thin seedlings emerge with distinctive grass-like appearance.
Maintain consistent soil moisture without waterlogging. Keep soil temperature 50-65°F for optimal germination. Protect seedlings from heavy foot traffic.
Seedling & Establishment
4-6 weeksYoung plants develop 3-5 leaves and establish shallow root system. Growth is relatively slow initially.
Water regularly to maintain moist soil. Light nitrogen application (20-30 lbs N/acre) promotes early growth. Control competing weeds.
Vegetative Growth
8-12 weeksPlant develops multiple tillers (shoots) and extensive root system. Dark green foliage grows vigorously, especially in spring and early summer.
Apply balanced fertilizer (50-100 lbs N/acre annually). Manage grazing or cutting to encourage tiller development. Ensure adequate soil moisture.
Flowering & Seed Production
4-6 weeksDistinctive seed heads emerge on tall culms (stems), typically 18-36 inches tall. Flowers appear in open panicles with spikelets containing multiple florets.
Reduce nitrogen application if seed production is desired. Avoid heavy grazing or cutting during this stage. Monitor for seed head diseases.
Seed Maturity & Harvest
2-4 weeksSeeds turn golden-brown and become hard; seed heads dry down. Plants naturally senesce as autumn approaches.
Harvest seed when moisture content reaches 15-20% (typically August-September). Cut or thresh to collect seed. Allow aftermath grazing or hay production.
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
-
Monitor for defoliation; spray insecticides if populations exceed economic threshold; encourage natural predators
-
Maintain adequate moisture; use recommended insecticides during outbreaks; remove nearby weeds that harbor eggs
-
Early planting to avoid peak adult emergence; no established chemical control widely recommended
-
Use disease-free seed; avoid excessive nitrogen; roguing infected seed heads; some varieties have natural resistance
Uses
Livestock Forage
CulinaryMagna Bromegrass is highly palatable and nutritious forage for cattle, sheep, horses, and other grazing livestock. It provides excellent summer grazing and quality hay when harvested at optimal stage. [source]
Pasture & Hay Production
HouseholdThis grass is a primary component of improved pasture mixtures and hay fields across temperate and semi-arid regions. Its drought tolerance makes it ideal for dryland farming systems. [source]
Wildlife Habitat
WildlifeMagna Bromegrass provides nesting cover and food for grassland birds and small mammals. It's used in conservation plantings and wildlife food plots. [source]
Erosion Control & Soil Stabilization
HouseholdThe robust root system stabilizes soil on slopes and prevents erosion. It's used in conservation plantings and reclamation projects. [source]
Rotational Grazing Systems
HouseholdMagna Bromegrass integrates well into rotational grazing systems, providing productive forage cycles that improve soil health and sustainability. [source]
Harvest Tips
For hay: cut at boot stage or early heading for optimal nutritional value and digestibility. For pasture: maintain 3-4 inch stubble height for sustainable forage production. For seed: harvest when seed heads are golden-brown (typically August-September); cut and thresh or use direct combine harvesting. Seed moisture should be 15-20% at harvest. Allow drying if moisture exceeds 20% to prevent mold.
Fun Facts
- 🌱 Magna Bromegrass was developed as an improved cultivar specifically to enhance seed production and vigor compared to standard rescuegrass, making it more viable for commercial seed production.
- 🌱 Unlike many cool-season grasses, Magna Bromegrass exhibits exceptional summer growth, remaining productive during drought conditions when other forage grasses decline.
- 🌱 The name 'Magna' (meaning 'great' in Latin) reflects the larger seed size and enhanced plant vigor of this variety compared to its parent rescuegrass species.
Gardening Terms
New to gardening? Learn about terms used in this guide:
Join 30,000 gardeners planning their gardens with LizPlants.
Get your personalized Magna Bromegrass planting timeline
Tell us your zip code and we'll calculate exactly when to start Magna Bromegrass 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 Magna Bromegrass timeline →