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    2. Agassiz Seed COVID-19 Response Update. Learn More.

      Certified State Seed Mixes

      Agassiz Seed is a certified supplier of seed mixes for DOT and state projects around the region.  Below are full listings for state mixes for Minnesota, North Dakota, South Dakota, and Wisconsin.  Click on a mix name/number to see a full list of seeds used in each mix.   

      SOUTH DAKOTA STATE SEED MIXES:

      SDDOT Type A SDDOT Type B SDDOT Type C
      SDDOT Type D SDDOT Type E SDDOT Type F
      SDDOT Type G SD Type A - G with MycoApply  

      ROADSIDE MIXES:

      15OTS 19ORS

      240SR

      250GR

      260CT

      270RT

      280AG

       

       


      MN PLANTING DATE GUIDE

      SEEDING - RECOMMENDED DATES/VEGETATION TYPE

      Seed Type SPRING/
      EARLY
      SUMMER
      (see date below)
      MID-SUMMER
      June 30 - Aug 1
      EARLY FALL
      Aug 1 - Sep 10
      MID-FALL
      Sep 10 - Oct 15
      LATE FALL
      (DORMANT SEEDING)
      North: Oct 15 - Frozen Soil
      South: Nov 1 - Frozen Soil
      SNOW
      SEEDING
      Feb 15 -
      April 7

      Warm-Season Prairie

      May 15 - June 30

               

      Prairie Sedges and Forbs

      May 15 - June 30

               

      State Native Construction Mix

      Apr 1 - June 30

               

      EXPECTED SUCCESS RATES

      •  
      • HIGH SUCCESS
      •  
      • MEDIUM SUCCESS
      •  
      • NOT RECOMMENDED WITHOUT
        WATERING OR FAVORABLE
        WEATHER CONDITIONS

      NOTE: Many projects will have NRCS, Mn/DOT, or other specifications that will define planting dates. Variance can often be granted due to seasonal conditions.

      Dates included in the tables above represent average dates for Minnesota. Planting dates may be one to two weeks later in the northern half of the state and one to two weeks earlier in southern half of the state depending on seasonal conditions. Most seed mixes contain combinations of the vegetation types listed in the table; dates should be chosen that will ensure long-term success of the entire seed mix. Local staff should use their judgement about the most appropriate planting dates.


      MN 5-DIGIT NUMBERING SYSTEM EXPLANATION

      THE FOLLOWING TABLE SHOWS HOW SEED MIXES ARE NUMBERED:

      1ST DIGIT NATIVE/
      NON-NATIVE
      2ND DIGIT FUNCTION 3RD DIGIT
      PLANTING AREA
      4TH DIGIT HYDROLOGY 5TH DIGIT VERSION
      1.  Hybrid
      2. Introduced
      3. Native
      4. Custom
      1.  Cover Crop
      2. Mid-Term Stabilization
      3. Stormwater Facilities
      4. Wetland
      5. Grassland
      6. Woodland
      1.  Statewide
      2. South 1 /2 and West 1/3
      3. NE and North Central
      4. NW
      5. SW
      6. SE
      7. Central
      1. General
      2. Dry
      3. Dry mesic
      4. Mesic
      5. Wet mesic
      6. Seasonally flooded
      7. Saturated
      8. Emergent
      9. Submergent
      1. First version
      2. Second version
      3. Etc.

      EXAMPLE SEED MIX NUMBER: 33-262 contains native species (3), is used for stormwater facilities (3), may be planted in the southern half and western third of the state (2) in areas that are seasonally flooded (6), and it is the second version (2) of this seed mix. This mix could also be used in Planting Area 7 if no regional mix is available.

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