
SOS 400 Turf Annual Ryegrass
When discussing annual ryegrass for warm season overseeding or cool season turf recovery, most think of ‘Gulf’ annual ryegrass as the ‘go to’ affordable option. In cooperation with Texas A&M, Barenbrug USA changed the annual ryegrass discussion with the introduction of ‘Panterra’ turf-annual ryegrass. This development brought about what is known today as the Super Overseed™ (SOS) brand. SOS 400 is primarily comprised of the Panterra genetic line including Panterra™ and Panterra V.
Predictable spring transition
- Fast germination and establishment
- Extremely traffic tolerant
- Competitive economically compared to perennial and intermediate ryegrass
- Slower growth rate with finer texture
- Darker genetic color

SOS 400 Turf Annual Ryegrass
When discussing annual ryegrass for warm season overseeding or cool season turf recovery, most think of ‘Gulf’ annual ryegrass as the ‘go to’ affordable option. In cooperation with Texas A&M, Barenbrug USA changed the annual ryegrass discussion with the introduction of ‘Panterra’ turf-annual ryegrass. This development brought about what is known today as the Super Overseed™ (SOS) brand. SOS 400 is primarily comprised of the Panterra genetic line including Panterra™ and Panterra V.
Predictable spring transition
- Fast germination and establishment
- Extremely traffic tolerant
- Competitive economically compared to perennial and intermediate ryegrass
- Slower growth rate with finer texture
- Darker genetic color
Regional Growing Zone | 1 - Northwest Coastal, 2 - California Coastal, 3 - Southern Mountain, 4 - Mountain, 5 - Midwest, 6 - Northeast Lakes, 7 - Great Lakes South, 8 - Appalacia, 9 - Southeast, 10 - South Florida, 11 - South Texas, 12 - Southwest |
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USDA Plant Hardiness Zones | 2, 3, 4, 5, 6, 7, 8, 9, 10 |
Temperature Zone ![]() |
Warm, Cool, Transitional |
Height | N/A |
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Bloom Period | N/A |
Bloom Color | N/A |
Leaf Color | Green |
Growing Cycle | Annual |
Sun Requirement | Full Sun, Shade |
Maturity | N/A |
Traits | N/A |
Title | N/A |
Planting Season | Spring - Early Fall |
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Plant Depth | 0.25" |
Minimum Soil Temp for Germination | 45° F |
Establishment | Easy |
Seed Treatment | N/A |
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Seeds Per Pound | 225,000 |
Coverage | 10-15 LBS PER 1000 SQ. FEET |
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Available Sizes | 1 lb. 5 lb. 10 lb. 25 lb. 50 lb. |
Applications | SOS Brand Turf-Annuals will germinate with soil temps in the mid-40’s F. This allows for successful overseeding results for late season renovation after the playing season has ended. Late season renovation provides field protection for winter and early spring practice and play. SPORTS TURF 15 LBS PER 1000 SQ FT GOLF TURF 10-15 LBS PER 1000 SQ. FEET LANDSCAPING 10 LBS PER 1000 SQ. FEET LAWN 8 LBS PER 1000 SQ. FT |
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