1. Ramona Garner PM Specialist East National Technology Support Center

2. Each disturbed site is unique and seed mixes should reflect the sites:  climate  soils  environmental setting  proposed land use  the desired plant community

5. typically expressed as pounds per acre derived from seed per square foot

6. 2134567891011 INCHES

7. 2134567891011 INCHES

8.  Pure Live Seed (PLS)  number of seed per pound  planting area  desired seeding rate

9. PLS = % germination X % purity 100 Americus Indiangrass Lot # GAPMC2010-F23 83.29% PURE SEEDGERMINATION: 73% 00.00% OTHER CROP SEEDORIGIN: GEORGIA 16.71% INERT MATTERTEST DATE: 11/10 00.00% WEED SEEDNET WEIGHT: 10 LBS NOXIOUS WEED SEED: NONE FOUND PLS = 73 germination X 83.29 purity = 60.8 100

10. Hedge your bets: Small seeded grasses and forbs have emergence of ~52% if germination is greater than 80% ~33% if germination is between 60 and 80% Munshower, Frank F. 1994. Practical Handbook of Disturbed Land Revegetation. CRC Press, Boca Raton, FL All seed has the potential to germinate

11.  PLANTS Database (http://plants.usda.gov)http://plants.usda.gov

13.  Seed Catalogs  Internet Search

14. PlantSeed Per PoundPLS Indiangrass174,72061% little bluestem240,67068% lanceleaf tickseed221,00048% purple coneflower115,66452% joe pye weed1,500,00026% Planting Area: 1 acre = 43,560 ft 2 Desired Seeding Rate = 30 seed/ft 2

15. PlantSeed Per Pound PLSSeed Per Acre Pounds Per Acre Without PLS Indiangrass174,72061%1,816,45210.39- 2.91 little bluestem240,67068%1,724,9767.17- 1.75 lanceleaf tickseed221,00048%1,986,3368.99- 3.08 purple coneflower115,66452%1,934,06416.72- 5.42 joe pye weed1,500,00026%2,640,0001.76- 0.89 seed needed = seed/ft 2 X total area (in ft 2 ) seed needed = 30 X 43,560 = 1,306,800 PLS seed needed = 1,306,800 + 39% = 1,816,452 Pounds per Acre = Seed Per Acre / Seed Per Pound 1,816,452 / 174,720 = 10.39

17. Florida Seed Mix Calculator Contact: Mimi Williams Mimi.Williams@fl.usda.gov 352.338.9544 New York Seed Mix Calculator Contact: Paul Salon Paul.Salon@ny.usda.gov 607.562.8404

18. Ramona.Garner@gnb.usda.gov 336.370.3340