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SEED SELECTION AND GROWER'S GUIDE
For more information contact: Plant Materials Center, 3308
University Drive, Bismarck, ND 58504; Phone (701) 250-4330
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Antelope Germplasm Slender White
Prairieclover
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Bismarck Germplasm Purple Prairieclover
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Bismarck Germplasm Stiff Sunflower
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Medicine Creek Germplasm Maximilian
Sunflower
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Bismarck Germplasm Narrow-leaved
Purple Coneflower
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Scientific name
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Dalea candida
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Dalea purpurea
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Helianthus pauciflorus
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Helianthus maximiliani
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Echinacea angustifolia
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Origin
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North Dakota
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South Dakota
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North Dakota
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South Dakota
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North Dakota
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Seeds / lb.
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278,000
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300,000
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85,000
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250,000
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128,000
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Seeding Date
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spring
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spring
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spring or
fall dormant |
spring or
fall dormant |
fall dormant
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Seed Treatment
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scarification
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scarification
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none
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none
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cold stratification
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Recommended Planting
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rows
30 PLS/linear ft. |
rows
30 PLS/linear ft. |
rows or solid
15 PLS/linear ft. |
wide rows
30 PLS/linear ft. |
rows
30 PLS/linear ft. |
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Row Spacing
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24-36 inches
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24-36 inches
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24-36 inches
grow solid |
6-8 feet
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24-36 inches
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Seeding Rate
(PLS lbs/acre) |
1.6
at 36" spacing |
1.5
at 36" spacing |
2.5
at 36" spacing |
0.75
at 36" spacing |
2.8
at 36" spacing |
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Seed Yield (lbs/acre)
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200-400
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200-400
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75-150
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75-150
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50-100
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Soils / Sites
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well-drained
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well-drained
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well-drained
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extra moisture
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well-drained
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Potential Problems
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root rot
insects |
root rot
insects |
insects
bird predation shattering |
insects, drought
bird predation shattering |
needs good pollination
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Other Remarks
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easy to harvest
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easy to harvest
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spreads aggressively by rhizomes, wide
rows fill in quickly
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consider early season mowing to keep
plants shorter for harvest
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potential for disease and insect problems
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