| Species |
Common Name |
Germination Information |
| Abronia fragrans | Snowball Sand Verbena | 30-60 day cool moist stratification or plant outside fall to very early spring. plant to 1/8 inch deep |
| Achillea millefolium | White Yarrow | no pretreatment. plant outside fall, spring or summer. plant on soil surface or to 1/16 inch deep. Needs warm soil for germination. |
| Aconitum columbianum | Monkshood | 30-90 day cool moist stratification or plant outside in the fall in moist soil. plant on soil surface and cover with a thin layer of sand |
| Actaea rubra | Baneberry | 21 days 70 F day 64 F night then 90 days moist @ 34 F or plant outside at end of summer |
| Agastache pallidiflora | Pale Hyssop | no pretreatment necessary. Sometimes needs up to 30 days of cool moist stratification. |
| Agastache urticifolia | Horse Nettle | 45 day cool moist stratification germination or plant outside in the fall. plant on or just below soil surface |
| Allium acuminatum | Taper-tip Onion | some germintaion with no pretreatment or 30 day cool moist stratification or plant outside fall to early spring. plant to 1/16-1/8 inch deep |
| Allium cernuum | Pink Nodding Onion | some germintaion with no pretreatment or 30 day cool moist stratification or plant outside fall to early spring. plant to 1/16-1/8 inch deep |
| Amorpha canescens | Leadplant | hot water soak for 6-8 hrs, then 30 day cool moist stratification or plant outside in the fall. plant to 1/16 inch deep |
| Anemone cylindrica | Thimbleweed | no pretreatment or 80 day cool moist stratification. plant outside fall to spring. plant on soil surface, may take up to 21 days to germinate. |
| Aquilegia coerulea | Colorado Columbine | 21 day cool moist stratification, some germination without pretreatment or plant outside fall to early spring. plant to 1/32 inch deep |
| Argemone polyanthemos | Prickly Poppy | plant outside in the fall. plant on soil surface and cover with 1/8 inch of sand. |
| Arnica parryi | Rayless Arnica | No pretreatment. plant outside spring or summer. plant on soil surface or to 1/32 inch deep |
| Artemisia frigida | Fringed Sage | no pretreatment. plant outside fall or spring. plant on soil surface. |
| Artemisia ludoviciana | Prairie Sage | no pretreatment necessary. plant outside spring or summer. plant on soil surface |
| Asclepias asperula | Antelope Horns | No pretreatment. Plant outside fall to spring. plant to 1/8 inch deep |
| Asclepias incarnata | Swamp Milkweed | No pretreatment. Plant outside spring or summer. plant on soil surface or to 1/8 inch deep |
| Asclepias speciosa | Showy Milkweed | No pretreatment. Plant outside spring or summer. plant to 1/8 inch deep |
| Aster engelmannii | Engelmanns Aster | Plant outside fall or spring. plant to 1/32 inch deep |
| Aster glaucodes | Blueleaf Aster | no pretreatment necessary. plant outside after last frost |
| Aster laevis | Smooth Aster | No pretreatment. plant outside spring or summer. plant on soil surface or to 1/32 inch deep |
| Aster novae-angliae | New England Aster | no pretreatment necessary. plant outside spring or summer. plant on soil surface or to 1/16 inch deep |
| Astragalus ceramicus | Painted Milkvetch | Scarify or hot water soak or plant outside in the fall. plant on soil surface and cover with a thin layer of sand |
| Astragalus convallarius | Whisk Broom Milkvetch | Scarify with sandpaper and plant outside in fall or winter |
| Astragalus drummondii | Woolly Milkvetch | Scarify or 30-60 day cool moist or plant outside in the fall. plant to 1/16 inch deep |
| Astragalus utahensis | Utah Milkvetch | 30-90 day cool moist stratification or plant outside fall to late winter. Plant to 1/8 inch deep |
| Bahia dissecta | Mountain Bahia | no pretreatment. plant outside spring or summer. plant on soil surface or to 1/32 inch |
| Baileya multiradiata | Desert Marigold | 30 day cool moist stratification or plant outside fall, or early spring. plant on soil surface or to 1/16 inch deep |
| Balsamorhiza sagittata | Arrowleaf Balsamroot | 45 day cool moist stratification or plant outside in the fall to early spring. plant on soil surface or to 1/8 inch deep |
| Calochortus gunnisonii | Mariposa Lilly | 45 day cool moist stratification or plant outside fall to early spring. plant on soil surface or to 1/8 inch deep |
| Calylophus hartwegii | Lavander Leaf Primrose | no pretreatment. plant outside spring or summer. plant on soil surface or to 1/16 inch deep |
| Campanula rotundifolia | Harebells | no pretreatment. plant outside spring or summer. plant on soil surface |
| Castilleja applegatei | Wavy-leaf Indian Paintbrush | 60-90 day cool moist stratification or plant outside in the fall plant on soil surface and cover with thin layer of sand. |
| Castilleja integra | Indian Paintbrush | 30 day cool moist stratification or plant outisde fall to early spring. plant 1/32 to 1/16 inch deep. Host plants not necessary for first year, but may be needed for long term survival. Takes up to 4 weeks to germinate. |
| Castilleja linariifolia | Narrow Leaf Paintbrush | 30-60 day cool moist stratification or plant outside in the fall. plant on soil surface or to 1/16 inch deep |
| Castilleja miniata | Aspen Paintbrush | 30-60 day cool moist stratification or plant outside in the fall. plant on soil surface or to 1/16 inch deep |
| Castilleja rhexiifolia | Split Leaf Paintbrush | 30-60 day cool moist strat. or plant outside in the fall in moist soil. plant on soil surface and cover with a thin layer of sand |
| Castilleja sessiliflora | Downy Paintbrush | 30-60 day cool moist stratification or plant outside in the fall. plant on soil surface or to 1/16 inch deep |
| Castilleja sulphurea | Sulfur Paintbrush | 30-60 day cool moist stratification or plant outside fall to late winter. plant on soil surface or to 1/32 inch deep |
| Clementsia rhodantha | Queens Crown | no pretreatment plant outside spring or summer, plant on soil surface in moist or wet soilRefund if no gremination |
| Cleome lutea | Golden Beeplant | dormant seed 30-60 day cool moist stratification |
| Cleome serrulata | Rocky Mountain Bee Plant | 30-60 day cool moist stratification or plant outside fall to early spring. plant to 1/8 inch deep |
| Coreopsis lanceolata | Lanceleaf Coreopsis | no pretreatment necessary. plant outside spring or summer. plant to 1/16 inch deep |
| Coreopsis tinctoria | Plains Coreopsis | No pretreatment necessary. plant outside spring or summer. plant on soil surface or to 1/16 inch deep |
| Cosmos parviflorus | Small Flowered Cosmos | no pretreatment or 30 day cool moist stratification, or plant outside fall to early spring. plant to 1/8 inch deep |
| Dalea candida | White Prairie Clover | no pretreatment necessary. plant outside spring or summer. plant to 1/8 inch deep. Germinates at 15-30 C. |
| Dalea cylindriceps | Rabbitfoot Dalea | 30 day cool moist stratification |
| Dalea jamesii | James Dalea | no pretreatment necessary for dehulled seed |
| Dalea purpurea | Purple Prairie Clover | no pretreatment necessary. plant outside spring or summer. plant to 1/8 in deep |
| Delphinium occidentale | Western Larkspur | no pretreatment or up to 30 day cool moist stratification or plant outside in early spring. plant 1/8 to 1/16 inch deep |
| Delphinium virescens | Prairie Larkspur | dormant seed. 30-60 day cool moist stratification or plant outside in the fall. plant to 1/16 inch deep |
| Desmanthus illinoensis | Illinois Bundleflower | Scarification will improve germination. Rub with sandpaper to roughen seed cost. Plant outside spring or summer. plant 1/8 to 1/4 inch deep. |
| Dichelostemma pulchellum | Bluedicks | Plant outside fall or spring. plant 1/16-1/8 inch deep. Seed planted in the spring may take one year to germinate. Germination rate may be improved by soaking for 12-24 hours followed by 14-28 day cool moist stratification. |
| Dryas octosepala | Mountain Dryad | no pretreatment necessary. plant outside in spring. plant on soil surface |
| Drymocallis fissa | Big-flower Cinquefoil | 30-60 cool moist stratification or plant outside in the fall. Sow on soil surface and cover with thin layer of sand or soil |
| Echinacea angustifolia | Black Samson | 30-60 day cool moist stratification or plant outside in the fall. plant to 1/8 inch deep |
| Epilobium angustifolium | Fireweed | no pretreatment or 30 day cool moist stratification. or plant outside fall to early spring. plant on soil surface and cover with very thin layer of sand or soil. May take 2-4 weeks to germinate |
| Eremogone congesta | Round-headed Sandwort | no pretreatment necessary. sometimes may need up to 60 days cool moist stratification. plant outside before last frost in spring |
| Eremogone fendleri | Fendlers Sandwort | No pretreatment necessary or 30 day cool moist stratification, or plant outside fall or spring. plant on soil surface |
| Erigeron elatior | Tall Fleabane Daisy | no pretreatment. plant outside spring or summer. plant on soil surface or to 1/32 inchRefund if no germination |
| Erigeron engelmannii | Dwarf Fleabane Daisy | plant outside fall to early spring. plant on soil surface or to 1/32 inch deep |
| Erigeron peregrinus | Subalpine Fleabane | plant outside fall to early spring. plant on soil surface or to 1/32 inch deep |
| Erigeron speciosus | Showy Fleabane Daisy | no pretreatment. plant outside spring or summer. plant on soil surface or to 1/16 inch deep |
| Eriogonum jamesii v. jamesii | James Wild Buckwheat | no pretreatment necessary.. plant outside spring or summer. plant on soil surface or to 1/8 inch deep |
| Eriogonum racemosum | Racemose Wild Buckwheat | no pretreatment necessary.. plant outside spring or summer. plant on soil surface or to 1/8 inch deep |
| Eriogonum subalpinum | White Sulfur Flower | no pretreatment necessary.. plant outside spring or summer. plant on soil surface or to 1/8 inch deepRefund if no gremination. |
| Eriogonum umbellatum v. majus | Cream Buckwheat | 14-30 day cool moist stratification or plant outside fall to early spring. sow on soil surface or to 1/8 inch deep |
| Eriogonum umbellatum v. umbellatum | Sulfur Flower | 14-30 day cool moist stratification or plant outside fall to early spring. sow on soil surface or to 1/8 inch deep |
| Erysimum capitatum | Wallflower | 21-30 day cool moist stratification or plant outside late fall or early spring. plant on soil surface or to 1/16 inch deep |
| Erythronium grandiflorum | Dogtooth Violet | 60-120 day cool moist stratification or plant outside in the fall. Plant to 1/4 in deep |
| Eschscholzia californica | California Poppy | No pretreatment. Plant outside fall to spring. Plant to 1/16 inch deep |
| Frasera speciosa | Monument Plant | 90-120 day cold moist stratification or plant outside in the fall. plant on soil surface or to 1/16 inch deep |
| Gaillardia aristata | Perennial Blanketflower | no pretreatment. plant outside spring or summer. plant 1/8 to 1/16 inch deep |
| Gaillardia pinnatifida | Adobe Blanketflower | no pretreatment necessary, plant outside spring or summer. plant on soil surface or to 1/8 inch deep |
| Gaillardia pulchella | Indian Blanketflower | no pretreatment, plant outside spring or summer. plant on soil surface or to 1/8 inch deep |
| Gentiana algida | Snow Gentian | 30 day cool moist stratification or plant outside fall or early spring. plant to 1/32 inch deep. |
| Gentiana thermalis | Fringed Gentian | 30-60 day cool moist strat. or plant outside in the fall in moist soil. plant to 1/32 inch deep. |
| Geum macrophyllum | Large-leaved Avens | no pretreatment necessary. plant outside spring or summer. plant on soil surface |
| Geum triflorum | Prairie Smoke | no pretreatment surface plant, 30 day cool moist may improve germination |
| Gilia pinnatifida | Sticky Gilia | 30 day cool moist stratification or plant outside fall to early spring. Sow on soil surface and cover with a thin layer of sand |
| Glycyrhiza lepidota | Wild Licorice | Scarify or 30-60 day cool moist or plant outside in the fall. plant to 1/16 inch deep |
| Haplopappus croceus | Saffron Goldenweed | no pretreatment necessary. plant outside in spring. sometimes needs up to 30 days cool moist stratification |
| Hedysarum boreale | Chainpod | scarify and 30-60 day cool moist stratification or plant outside in the fall without pretreatment. plant 1/8 to 1/4 inch deep |
| Helenium autumnale | Sneezeweed | no pretreatment necessary. Plant outside fall to early spring. Plant to 1/16 inch deep |
| Helenium hoopesii | Orange Mountain Daisy | no pretreatment necessary. plant outside fall to spring. plant on soil surface or to 1/16 inch deep |
| Helianthella parryi | Little Sunflower | no pretreatment necessary |
| Helianthella quinquenervis | Aspen Sunflower | no pretreatment necessary. plant outside spring or summer plant on soil surface or to 1/16 inch |
| Helianthus annuus | Annual Sunflower | no pretreatment necessary plant outside fall to early summer. Plant to 1/8-1/4 inch deep. Best germination if soil is above 45 F. |
| Helianthus maxmilianii | Maxmilians Sunflower | no pretreatment, 30 day cool moist may improve germination or plant outside fall to early spring. Plant 1/8 to 1/16 inch deep |
| Helianthus nuttallii | Marsh Sunflower | 45 day cool moist stratification or plant outside in the fall. plant to 1/16 inch deep. |
| Helianthus petiolaris | Plains Sunflower | no pretreatment necessary or 30-90 day cool moist stratification or plant outside in the fall. plant to 1/8 inch deep |
| Helianthus pumilus | Foothills Sunflower | 30-60 day cool moist stratification. or plant outside in the fall. plant on soil surface and cover with a thin layer of sand |
| Heracleum sphondylium | Cow Parsnip | 60-120 days cool moist stratification, or plant outside in the fall. plant to 1/16 inch deep. Very dormant seed, may take up to 3 years to germinate |
| Hymenoxys grandiflora | Old Man of the Mountain | no pretreatment. plant outside spring or summer. plant on soil surface or to 1/16 inch deep |
| Iliamna rivularis | Wild Hollyhock | Hot water soak or sandpaper scarification or plant outside in the fall. plant to 1/8 inch deep. |
| Ipomoea leptophylla | Bush Morning Glory | 30-60 day cool moist stratification or plant outside fall or winter. Plant to 1/4 inch deep |
| Ipomopsis aggregata | Scarlet Gilia | Plant outside fall to spring. plant on soil surface or to 1/8 inch deep |
| Iris missouriensis | Rocky Mountain Iris | scarify then 90-180 days cool moist stratification or plant outside in the fall in moist soil for delayed germination. plant to 1/8 inch deep |
| Liatris punctata | Dotted Gayfeather | no pretreatment. Plant outside spring or summer. plant on soil surface. Do not cover, needs light to germinate |
| Ligularia amplectens | Subalpine Groundsel | 45 cool moist stratification or plant outside in the fall or winter. plant on soil surface. |
| Ligularia bigelovii | Nodding Groundsel | 45 cool moist stratification or plant outside in the fall or winter. plant on soil surface or to 1/16 inch deep. |
| Linum perenne v. lewisii | Blue Flax APPAR | No pretreatment necessary. plant outside fall or spring. plant to 1/8 inch deep |
| Linum perenne v. lewisii | Blue Flax Maple Grove | No pretreatment necessary. plant outside fall or spring. plant to 1/8 inch deep |
| Linum puberulum | Copper Flax | No pretreatment or 30-90 day cool moist stratification. Plant outside fall to early spring. Plant to 1/8 inch deep |
| Lupinus alpestris | Mountain Lupine | 30-45 day cool moist stratification or plant outside fall to early spring. plant to 1/8 inch deep |
| Lupinus argenteus | Silver Lupine | 45 day cool moist or hot water soak (bring water to nearly boiling and then pour over seeds and let soak for 12-24 hrs) or scarify with sandpaper or plant outside in fall. plant to 1/4 inch |
| Lupinus plattensis | Platte Lupine | 45 day cool moist or hot water soak (bring water to nearly boiling and then pour over seeds and let soak for 12-24 hrs) or scarify with sandpaper or plant outside in fall. plant to 1/4 inch |
| Lupinus pusillus | Ant Money | 45 day cool moist or hot water soak or sandpaper scarify or plant outside in the fall. plant up to 1/8 inch deep |
| Lupinus sericeus | Silky Lupine | 45 day cool moist or hot water soak or scarify with sandpaper or plant outside in fall. plant to 1/4 inch |
| Machaeranthera tanacetifolia | Tansy Aster | no pretreatment. plant outside spring or summer. plant on soil surface or to 1/16 inch deep |
| Melampodium leucanthum | Black Footed Daisy | no pretreatment. plant outside spring or summer. plant on soil surface or to 1/16 inch. May take 3-4 weeks to germinate |
| Mentzelia decapetala | Ten Petaled Blazingstar | 30 day cool moist stratification or plant outside fall to spring. plant on soil surface or to 1/16 inch deep. |
| Mertensia lanceolata | Lance-leaf Bluebells | 60-90 days cool moist stratification or plant outside in the fall. Plant to 1/16 inch deep |
| Mimulus guttatus | Yellow Monkey Flower | no pretreatment. plant outside spring or summer. plant on soil surface. |
| Mirabilis multiflora | Wild Four O Clock | no pretreatment. plant outside fall or spring. plant 1/8 to 1/4 inch deep. May take 2-3 weeks to germinate. |
| Monarda fistulosa | Wild Bergamot | germinates readily, plant outside late spring to early summer. plant on soil surface or to 1/16 -1/8 inch deep |
| Monardella odoratissima | Horsemint | 45 day cool moist stratification or plant outside in the fall. plant on or just below soil surface |
| Oenothera caespitosa | Stemless Evening Primrose | 45 day cool moist stratification or plant outside fall to early spring. plant 1/32 to 1/16 inch deep |
| Oenothera coronopifolia | Creeping Evening Primrose | may need up to 60 days cool moist stratification. plant outside in the fall. plant to 1/16 inch deep |
| Oenothera missouriensis | Missouri Evening Primrose | no pretreatment. plant outside fall to early spring. plant on soil surface or to 1/16 inch. |
| Oenothera pallida | Pale Evening Primrose | no pretreatment or 14 day cool moist strat. plant outside spring . Plant on soil surface or to 1/16 inch deep |
| Oenothera villosa | Prairie Primrose | no pretreatment, plant outside fall to spring. plant to 1/16 inch deep. Takes 3-4 weeks to germinate |
| Onosmodium molle | Marbleseed | 30-60 day cool moist stratification or plant outside in the fall. Plant on soil surface and cover with a thin layer of sand |
| Orthocarpus luteus | Yellow Owls Clover | dormant seed, 30-60 day cool moist stratification or plant outside fall to early spring. plant on soil surface |
| Oxytropis lambertii | Showy Locoweed | scarify and plant outside spring or summer. plant on soil surface or to 1/8 in deep |
| Oxytropis sericea | Silky Locoweed | scarify and plant outside spring or summer. plant on soil surface or to 1/8 in deep |
| Palafoxia sphacelata | Showy Palafoxia | no pretreatment necessary. plant outside fall or spring |
| Pedicularis crenulata | Purple Lousewort | No pretreatment or 30 day cool moist stratification. Plant outside spring or summer. plant on or just below soil surface |
| Pedicularis groenlandica | Elephant Head | 14-30 days cold moist stratification, or plant outside fall to early spring. plant to 1/16 inch deep, cover with a thin layer of mulch and water once or twice a month if no snow during the winter and keep moist in the spring |
| Pedicularis parryi | Parrys Lousewort | No pretreatment or 30 day cool moist stratification. Plant outside spring or summer. plant on or just below soil surface |
| Penstemon angustifolius | Pagoda Penstemon | 30 days moist stratification at 34-41 deg F or plant outside in the fall. plant on soil surface and cover with a thin layer of sand |
| Penstemon auriberbis | Golden Beardtongue | 30 days moist stratification at 34-41 deg F or plant outside in the fall. plant on soil surface and cover with a thin layer of sand |
| Penstemon barbatus | Scarlet Bugler | 30-60 days moist stratification at 34-41 deg F or plant outside in the fall and water once a month if no snow. plant on soil surface and cover with a thin layer of sand |
| Penstemon comarrhenus | Canyon Beardtongue | 30-60 days moist stratification at 34-41 deg F or plant outside in the fall and water once a month if no snow. plant on soil surface and cover with a thin layer of sand |
| Penstemon cyananthus | Wasatch Penstemon | 30-60 days moist stratification at 34-41 deg F or plant outside in the fall and water once a month if no snow. plant on soil surface and cover with a thin layer of sand |
| Penstemon eatonii | Firecracker Penstemon | 30-60 days moist stratification at 34-41 deg F or plant outside in the fall and water once a month if no snow. plant on soil surface and cover with a thin layer of sand |
| Penstemon fendleri | Fendlers Beardtongue | 30-60 days moist stratification at 34-41 deg F or plant outside in the fall and water once a month if no snow. plant on soil surface and cover with a thin layer of sand |
| Penstemon fruticosus | Bush Penstemon | 30-45 day cool moist stratification or plant outside in the fall or winter. Plant on soil surface and cover with a thin layer of sand |
| Penstemon glaber v. alpinus | Sawsepal Penstemon | 30-60 days moist stratification at 34-41 deg F or plant outside in the fall. plant on soil surface and cover with a thin layer of sand |
| Penstemon grandiflorus | Shell Leaf Penstemon | 30-60 days moist stratification at 34-41 deg F or plant outside in the fall. plant on soil surface and cover with a thin layer of sand |
| Penstemon griffinii | Griffins Penstemon | 30-60 days moist stratification at 34-41 deg F or plant outside in the fall and water once a month if no snow. plant on soil surface and cover with a thin layer of sand |
| Penstemon linarioides | Toadflax Beardtongue | needs up to 60 days cool moist stratification. plant outside in the fall |
| Penstemon pachyphyllus | Utah Bluebells | 30 days cold moist stratification or plant outside fall to late winter. plant on soil surface and cover with a thin layer of sand |
| Penstemon palmeri | Palmers Penstemon | 30-45 day cool moist stratification or plant outside fall to late winter. plant on soil surface and cover with a thin layer of sand |
| Penstemon procerus | Small Flowered Penstemon | 30-60 days moist stratification at 34-41 deg F or plant outside in the fall and water once a month if no snow. plant on soil surface and cover with a thin layer of sand |
| Penstemon rydbergii | Rydbergs Penstemon | 30-60 days moist stratification at 34-41 deg F or plant outside in the fall and water once a month if no snow. plant on soil surface and cover with a thin layer of sand |
| Penstemon secundiflorus | Orchid Beardtongue | 30-60 days moist stratification at 34-41 deg F or plant outside in the fall and water once a month if no snow. plant on soil surface and cover with a thin layer of sand |
| Penstemon spectabilis | Mohave Bugler | no pretreatment 30 days moist stratification at 34-41 deg F or plant outside in the fall. plant on soil surface and cover with a thin layer of sand |
| Penstemon strictus | Rocky Mountain Penstemon | 14-45 day cool moist stratification or plant outside fall to early spring. plant on soil surface and cover with a thin layer of sand. May take 3 weeks to germinate |
| Penstemon superbus | Superb Beardtongue | no pretreatment or 30-60 day cool moist or plant outside in the fall in moist soil. plant on soil surface and cover with a thin layer of sand |
| Penstemon utahensis | Utah Beardtongue | needs up to 60 days cool moist stratification. plant outside in the fall |
| Penstemon venustus | Blue Mountain Penstemon | 30-60 days moist stratification at 34-41 deg F or plant outside in the fall and water once a month if no snow. plant on soil surface and cover with a thin layer of sand |
| Penstemon virens | Blue Mist Penstemon | 30-60 days moist stratification at 34-41 deg F or plant outside in the fall and water once a month if no snow. plant on soil surface and cover with a thin layer of sand |
| Penstemon virgatus | Wand Beardtongue | 30-60 days moist stratification at 34-41 deg F or plant outside in the fall and water once a month if no snow. plant on soil surface and cover with a thin layer of sand |
| Penstemon whippleanus | Dusky Beardtongue | 45 days moist stratification at 34-41 deg F or plant outside in the fall. plant on soil surface and cover with a thin layer of sand |
| Phacelia heterophylla | White Scorpionplant | 30 day cool moist stratification or plant outside in the fall. plant to 1/16 inch deep |
| Polanisia dodecandra | Clammyweed | 30 day cool moist stratification or plant outside fall to spring. plant on soil surface or to 1/16 inch deep. |
| Primula parryi | Parrys Primrose | no pretreatment necessary. plant outside in the spring. plant on soil surface or to 1/16 inch deep. |
| Psilostrophe cooperi | Paperflower | 30 day cool moist improves germination or plant outside late spring early summer. plant on soil surface or to 1/16 inch deep. |
| Psoralea lanceolata | Lemon Scurfpea | scarify or 45 day cool moist stratification |
| Pulsatilla patens | Pasque Flower | no pretreatment necessary. plant outside spring or summer. plant on soil surface |
| Ratibida columnifera | Prairie Coneflower | no pretreatment necessary. plant outside spring or summer plant to 1/16 -1/8 inch deep |
| Ratibida columnifera pulchra | Mexican Hat | no pretreatment. plant outside spring or summer. plant to 1/16-1/8 inch deep. 7-14 days to germination |
| Rhinanthus minor ssp. borealis | Yellow Rattle | no pretreatment or 30-120 day cool moist stratification |
| Rudbeckia ampla | Goldenglow Daisy | no pretreatment or 45 days cool moist stratification or plant outside fall to early spring. plant on soil surface or to 1/8 inch deep |
| Rudbeckia hirta | Black-eyed Susan | no pretreatment. plant outside spring or summer. plant to 1/16 inch deep |
| Rudbeckia occidentalis | Western Coneflower | no pretreatment or 30 day cool moist stratification may increase germination or plant outside fall to early spring. plant to 1/16 inch deep |
| Schrankia nuttallii | Cats Claw Sensitive Briar | Scarify with sandpaper then cool moist stratification for 30 days. or plant outside in the fall. plant to 1/8 inch deep |
| Senecio atratus | Golden Butterwort | no pretreatment 30 day cool moist may increase germination. plant outside fall or spring. plant on soil surface or to 1/16 inch |
| Senecio longilobus | Silver Groundsel | no pretreatment, 30 day cool moist may increase germination. Plant outside in the spring. plant to 1/32 to 1/16 inch deep. |
| Senecio serra | Aspen Groundsel | no pretreatment 30 day cool moist may increase germination |
| Senecio triangularis | Arrowhead Groundsel | no pretreatment, 30 day cool moist may improve germination or plant outside fall to early spring. plant on soil surface or to 1/16 inch deep |
| Sidalcea candida | White Checkermallow | Scarify then 30-90 day cool moist stratification or plant outside in the fall. plant on soil surface or to 1/16 inch deep |
| Sisyrinchium montanum | Blue-eyed Grass | Scarify then 30-90 day cool moist stratification |
| Solidago canadensis | Canada Goldenrod | 30-60 day cool moist stratification or plant outside fall to early spring. plant on soil surface or to 1/32 inch deep |
| Solidago missouriensis | Goldenrod | no pretreatment or 30 days cold moist stratification. Plant outside in spring. plant on soil surface and cover with a thin layer of sand. |
| Solidago spathulata | Short Goldenrod | no pretreatment necessary. plant outside fall or spring. plant on soil surface |
| Sphaeralcea coccinea | Scarlet Globemallow | scarify or acid soak or hot water soak followed by 60-90 day cool moist stratification or plant outside in the fall. plant to 1/8 inch deep. May take serveral years to germiante. |
| Sphaeralcea munroana | Munroe Globemallow | scarify or acid soak or plant outside fall to late winter. Plant to 1/8 inch deep |
| Stanleya albescens | Adobe Princes Plume | no pretreatment, 30 day cool moist stratification may increase germination rate. plant on soil surface or to 1/16 inch deep. Takes 2-3 weeks to germinate |
| Stanleya pinnata | Princes Plume | 45 day cool moist stratification or plant outside late November to early March, water once or twice a month if you receive no rain or snow. plant to 1/16-1/8 inch deep and cover with a thin layer of mulch. |
| Swertia perennis | Bog Gentian | 30-90 day cool moist stratification or plant outside in the fall in moist soil. plant on soil surface or to 1/32 inch deep |
| Talinum parviflorum | Sunbright | 30 day cool moist stratification or plant outside fall to early spring, sow on soil surface |
| Thalictrum dasycarpum | Purple Meadow Rue | 30-60 day cool moist stratification. plant outside fall or winter. plant on soil surface and cover with a thin layer of sand. |
| Thalictrum fendleri | Meadow Rue | 30-60 day cool moist stratification or plant outside fall to early spring. Plant to 1/8 inch deep |
| Thelesperma filifolium | Green Threadleaf | 14- 45 day cool moist stratification. Plant outside fall to early spring. plant on soil surface or to 1/16 inch deep. Takes 3-4 weeks to germinate |
| Thermopsis divaricarpa | Foothills Golden Banner | scarify with sandpaper or hot water soak and plant outside in the spring or plant outside in the fall without treatment. plant to 1/4 inch |
| Thermopsis montana | Golden Banner | scarify with sandpaper or hot water soak and plant outside in the spring or plant outside in the fall without treatment. plant to 1/4 inch |
| Thermopsis rhombifolia | Arroyo Golden Banner | scarify or hot water soak or plant outside in the fall. plant on soil surface or to 1/8 inch deep |
| Tradescantia occidentalis | Western Spiderwort | no pretreatment necessary. plant outside spring or summer. plant on soil surface or to 1/8 inch deep |
| Verbena bipinnatifida | Dakota Vervain | 30 day cool moist stratification or plant outside fall to early spring. plant on soil surface or to 1/16 inch deep |
| Verbena stricta | Hoary Vervain | probably needs 30 day cool moist stratification |
| Verbesina encelioides | Crownbeard Daisy | no pretreatment. plant outside fall spring or summer. plant on soil surface or to 1/16 inch deep. Typically does not germinate until soil is very warm |
| Viguiera multiflora | Showy Goldeneye | 30 day cool moist stratification or plant outside in the fall. plant on soil surface or to 1/16 inch deep |
| Viola nuttallii | Yellow Wild Violet | 30-60 day cool moist stratification or plant outside fall to late winter. plant to 1/8 inch deep |
| Wyethia amplexicaulis | Mules Ears | low germination without pretreatment, 45 days cool moist stratification increases germination or plant outside fall or winter. plant to 1/8 inch deep |
| Xylorhiza venusta | Cisco Woody Aster | 45 cool moist stratification or plant outside fall to late winter. plant on soil surface or to 1/16 inch deep |
| Zinnia grandiflora | Prairie Zinnia | no pretreatment. plant outside spring or summer. plant on soil surface or to 1/16 inch deep |
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